12 Best Email Capture Tools for Your Website in 2025

Say your unpopular opinion and run: Building a successful website isn’t just about beautiful design. 

It’s about building end-to-end sales funnels that turn visitors into loyal subscribers and repeat customers. Email collecting tools are now central to how websites and marketing work together. For web developers and designers, they ensure signup forms look right at home. For marketers, they offer powerful ways to target and convert visitors. The right email collection tools can dramatically improve user experience, site performance, and conversion rates. According to our data, “lucky wheel” pop-ups can increase engagement and conversions up to 13%.

From customizable pop-ups that match your branding to advanced email capture apps that trigger based on visitor behavior, today’s platforms combine design flexibility with marketing automation. 

In this guide, we’ll break down 12 of the best email capture tools you can use to build your email list, increase engagement, and turn more website traffic into sales.

1. Claspo — Best Email Capture Service Overall (All Features in Free Forever Plan)

Claspo is a balanced, all-in-one pop-up and form builder that excels in flexibility and ease of use. It offers 1000+ templates for various use cases (get email addresses for marketing needs, increase sales, generate leads, grow AOV, block content, and more) to help you create lead capture popup forms without coding. 

Claspo helps simplify the process of collecting email addresses for your email marketing strategy. You can make any campaign come true: offer visitors a free resource in exchange for their email, run targeted email campaigns, send a newsletter, or encourage casual visitors to become email subscribers. Claspo got the tools you need to make it work without any fuss.

Claspo stands out for its advanced targeting and trigger options — you can easily customize when and to whom pop-ups appear (by time on page, UTM campaign, exit intent, etc.), allowing for highly segmented email lead capture. 

Make your forms look awesome and fit your brand perfectly with Claspo’s drag-and-drop builder. It also plugs into tools like Mailchimp, Klaviyo, and HubSpot, so your new contacts go straight into your marketing workflows. Plus, webhooks make sure no lead slips through the cracks.

And here’s the best part: Claspo offers a free lifetime plan for up to 30,000 monthly pageviews, and paid plans start at just $10/month, making it an ideal pick for startups and growing businesses.

Pros:

• Flexible targeting & personalization: With the tool, you can create multi-step forms, embed forms inline, or use pop-ups and banners as needed. This is a generous feature set typically found in more expensive tools.
• Easy-to-use editor: with visual tools and ready-made templates, you can set up campaigns fast without any coding. Users love how simple it is to connect with platforms like WordPress and Shopify.
• Generous freemium plan: The free plan gives you all the essentials for up to 30,000 pageviews, just with a small Claspo branding. Affordable paid plans remove branding and increase limits, offering great value.
• Full customization: you can tweak styles, animations, and how they appear on mobile without any hassle.
• A/B testing & conversion analytics: Claspo shows you exactly what’s clicking with your audience. Try out different ideas and see the results in real time.

Cons:

• Branding on free plan: The free tier includes a small Claspo branding on widgets. Removing this and unlocking higher traffic limits requires a paid plan (though the cost is low).
• Single workspace limitation: Currently, Claspo is single-workspace oriented. Agencies or users managing many client sites might miss features like multi-client dashboards or advanced user roles, though one account can manage multiple sites on higher plans.

2. OptinMonster — Popular Choice in Email Collection Tools (Premium)

OptinMonster is a well-known heavyweight in lead generation. It’s an all-in-one conversion optimization platform that offers an array of pop-up types (lightbox modals, floating bars, slide-ins, full-screen welcome mats, and more) and advanced targeting features. OptinMonster’s builder includes 700+ templates and a drag-and-drop interface, plus more advanced features like content locking, Yes/No step forms, and even gamified “spin-to-win” wheels, but on higher plans. 

OptinMonster lets you target visitors based on how they behave, show your campaigns at just the right moment (e.g., exit intent email capture forms to stop users about to leave), and run A/B tests to see what works best. 

But keep in mind, it’s a premium tool — there’s no free version or trial. If you want to unlock more features or handle higher traffic, plans start around $19/month (billed yearly).

Pros:

• Robust feature set: Smart targeting based on page, device, location, exit-intent technology, and many campaign types.
• Easy to connect: It works with popular email marketing tools like Mailchimp, Klaviyo, ConvertKit, and HubSpot. And if you use Zapier or webhooks, those work too, sending leads right into your email marketing stack.
• High customizability: The drag-and-drop builder, ready-made templates, and support for custom CSS/JS let both beginners and pros create professional pop-ups fast.

Cons:

• No free plan: OptinMonster doesn’t offer a free version or freemium tier. There’s only a 14-day money-back guarantee. This means it’s a pure premium investment — not ideal if you’re on a tight budget or just want to capture a few email addresses.
• Cost for higher tiers: To get features like onsite retargeting, follow-up sequences, and sub-accounts, you’ll need the Pro or Growth plans, which cost between $29 and $49+ per month if billed yearly. If your site has a lot of traffic, the price can go up based on pageviews.
• Steep learning curve: OptinMonster’s rich feature set means it’s not the easiest tool for beginners. It’s not as simple as plug-and-play tools, so expect to invest some time tweaking and testing to see the best results.
• Limited built-in analytics: The built-in reporting is minimal, so many users connect OptinMonster with Google Analytics to get deeper insights.

3. ConvertBox — Personalized On-Site Messages (Premium — Lifetime Pricing)

ConvertBox is one of those email capture apps built around personalization and segmentation. Instead of showing one message to everyone, it lets you customize offers based on who’s visiting, and even engage users with multi-step forms. You can start with a question or choices in a popup, then follow up with a form or deal that fits their answers. This way, you get better leads and people don’t feel like they’re getting spammed. 

One notable aspect about ConvertBox is how they price it. Instead of monthly fees, they often offer a lifetime deal for a one-time payment — around $495 as of 2025. This can save money in the long run if you’re ready to pay upfront. Just note that they don’t always accept new users; sometimes you need an invite to buy it.

Pros:

• Highly personalizable campaigns: You can show different offers or form steps based on who’s visiting and what they do on your site. This makes each visitor’s experience feel personal and relevant.
• Multi-step forms: ConvertBox lets you break your forms into smaller steps, so you don’t have to ask everything at once. Starts with a question first, and then ask for an email. This approach helps get better responses and higher-quality leads.
• Lifetime deal: Unlike most pop-up tools, ConvertBox lets you pay once for lifetime access, which could save you a lot over time.

Cons:

• Limited Availability: Sometimes, ConvertBox isn’t available for immediate signup. ConvertBox often opens in invite-only waves or via early access offers, which could be frustrating if you want to start right away.
• High upfront cost: While a one-time fee offers great long-term value, the upfront cost of $495 for the standard lifetime license is a significant investment for small businesses. They’ve indicated a future plan might be $99/month if you miss the lifetime window. Some users would rather pay less each month than a big sum all at once.
• No free trial or plan: You can’t try it before you buy it. You’ll need to watch demos or read reviews to see if it meets your needs.
• Lower visibility: ConvertBox has a lower profile than giants like OptinMonster or BDOW. It has a growing user base, but fewer third-party resources or community discussions are available. Support is available, but you may not find as many quick answers online due to its niche status.

4. BDOW (Sumo) — A Smart Starting Point in Email Collecting Tools (Free/Freemium)

BDOW!, formerly known as Sumo, is often lauded as the best email collection app for small websites. It’s a suite of tools that not only includes list-building pop-ups and welcome mats but also extras like social share buttons, basic visitor analytics, and heatmaps. In other words, BDOW goes beyond just capturing emails — it helps you understand visitor behavior, apply best practices in digital marketing, and encourage engagement in multiple ways. 

The free plan is quite generous: you can use BDOW on one domain with up to ~5,000 visits a month, which is great for a new blog or startup. The trade-off is that the free version displays the “Powered by BDOW/Sumo” branding on your pop-ups. Upgrading to a paid plan removes branding and lifts limitations if your traffic grows. 

Pros:

• Completely free plan: BDOW’s free tier provides essential features to capture emails (pop-ups, embedded forms, etc.) without any subscription fee. This allows you to start growing your audience with a free email list builder and boosting engagement on a $0 budget.
• Easy setup: It’s designed for non-technical users. Installation involves copying a script or using a plugin, after which you can design forms using a simple editor. You can add a basic popup to your site in minutes
• Upgrade options: BDOW paid plans remove branding and unlock higher traffic, but you can stick to free as long as it suits you. 

Cons:

• Visible branding on forms: The free version puts a “Powered by BDOW” badge on your forms, which can feel distracting or less polished on a business site.
• Limited customization: Customization is limited compared to paid alternatives — you’ll only get basic templates and fewer design tweaks.
• Fewer advanced features: BDOW handles the essentials, but it’s missing some of the more advanced features like detailed targeting or multi-step forms you might want as your list grows.
• Basic support: Support is mostly self-service through docs and forums, so personal help can be limited.

5. Thrive Leads — Top Choice for WordPress Users (Premium)

If you’re running a WordPress site, Thrive Leads is a great plugin to build your email list. It keeps everything inside your WordPress dashboard, so you don’t have to deal with third-party scripts. 

This plugin offers a variety of form types, including pop-ups (lightbox), slide-ins, ribbon bars, in-line forms (embedded within content), 2-step opt-in links, and more. You also get advanced targeting within WordPress (show forms by post, page, category, etc.) and cool email capture features like SmartLinks (which prevent showing opt-ins to your existing subscribers). 

It’s sold for a one-time fee (lifetime license with one year of updates) — roughly $67 for a single-site license, as of recent information, or accessible via the Thrive Suite membership. That means no monthly charges to worry about, a big plus for many.

Pros:

• WordPress native: Thrive Leads lets you make and manage your forms straight from WordPress. They’ll match your site’s design, and you don’t need to juggle code or extra apps. Plus, it loads fast since everything is hosted on your WP site.
• One-time purchase: Pay once for lifetime access, with optional renewals for support and updates. Great for avoiding monthly fees.
• Advanced targeting & various form types: Thrive Leads covers all major opt-in formats to grow your email list and let you target by content, user type, and behavior (e.g., scroll, time on page).

Cons:

• WordPress only: This is exclusive to WordPress. If your site is on another platform (Shopify, Wix, etc.), Thrive Leads isn’t an option. Also, if you ever migrate away from WordPress, you can’t take this tool with you.
• Site performance consideration: As a plugin handling heavy functionality, Thrive Leads can add to your site's load times. Users have noted it can be “buggy” or slow at times if not configured well. You might also need to test compatibility with other plugins.
• Learning curve: With lots of options and a custom interface, Thrive Leads can feel a little tricky at first, especially if you’re new to WordPress. It’s not too hard, but it does take some time to figure out all the form designs and advanced rules.
• No free trial: There’s no free version. Even though there is a 30-day refund, you still have to purchase it to test it. Support and updates are free for one year, then you’ll need to renew if you want to keep them. This is something to consider for long-term budgeting.

6. Poptin — Smart Pop-Ups with AI Triggers (Freemium)

Poptin is an email capture plugin that prides itself on using behavioral triggers and AI to show the right pop-up at the correct time. You can design pop-ups, slide-ins, top bars, and embedded forms through a simple drag-and-drop builder. Its USP is its smart targeting: Poptin can track visitor behavior (mouse movements, scroll depth, time spent on page) and show pop-ups where it can recognize intent.

Poptin offers a free version (for ~1,000 visitors per month) that is very handy if you want to try the tool out first. Paid versions start at around $25 per month for added traffic and to remove Poptin’s branding. There are A/B testing facilities, display rules to target selective visitors, and integration with popular email marketing platforms. It is especially handy for small e-commerce stores, SaaS sites, and bloggers who want to increase engagement with the help of smart pop-ups but with no large budget.

Pros:

• Customizable and responsive: All the pop-ups are automatically mobile-friendly. The editor allows you to completely customize the appearance to suit your site, with a wide range of templates to take advantage of. You can create branded pop-ups with no coding.
• Integrations & Autoresponders: Poptin is integrated with many email services (Mailchimp, HubSpot, ConvertKit). There is also an autoresponder built into the site to give an after-followup email (such as a welcome or coupon offer) when visitors opt to give their email addresses. It is also an extremely convenient option if you don’t have an email provider set up yet.
• Freemium access: This free tier allows for one domain and up to ~1,000 monthly visitors and is perfect for small sites or to simply try out the service.

Cons:

• Constraints of the free plan: The free plan is limited by impression constraints (roughly 1,000 visitors/month) and includes Poptin branding on the pop-ups themselves. You'll have to pay to remove branding and tighter constraints. This is natural enough but makes the free plan only worthwhile for sites with extremely low traffic or for the sake of testing.
• Learning curve of the interface: Just as with most users, advanced targeting provided by Poptin can be overwhelming. New users will need to spend some time learning to customize all the display rules to maximum.
• Mid-tier pricing: For higher-trafficked sites, the price is higher (e.g., the Pro plan ~$59/month with 50,000 visitors). This pricing is likely to become less affordable compared to some competitors with unlimited pageviews in fixed plans.
• Occasional over-triggering: With so many triggers available, there’s a possibility of overusing them and annoying visitors (e.g., multiple pop-ups if not carefully set). Poptin does allow capping frequency, but the user must be mindful in setup to ensure a smooth UX (which is a general best practice with any pop-up tool).

7. Mailmunch — Ecommerce-Focused Lead Capture (Freemium)

Mailmunch is an email capture and email marketing platform tailored for online stores and marketers looking to drive sales. With Mailmunch, you can easily create pop-ups that offer discount codes, announce sales, or capture emails in exchange for an incentive — all actions that directly impact online sales. 

The tool provides ready-made templates for things like coupon offers, countdown timers, spin-the-wheel discounts, and exit-intent offers to save abandoning carts. It also supports behavior-based triggers (exit intent, scroll percentage, time delay) and A/B testing to optimize your forms. 

Mailmunch has a free plan that lets you create basic forms and landing pages, and paid plans that unlock advanced features and higher subscriber counts. For example, the Essential plan starts around $9.99/month for up to 500 subscribers (if you use its email marketing features). If you’re primarily interested in capturing emails and syncing them to another email service, Mailmunch’s form builder can be used largely for free, then integrated with Mailchimp, Klaviyo, etc. It also shines in its deep integration with e-commerce platforms like Shopify and WooCommerce. 

Pros:

• Pre-built templates: Ready-made holiday sale pop-ups, spin-to-win wheels, simple newsletter offers, and many others are designed to capture attention. This helps non-designers quickly get effective forms live.
• Behavioral targeting: Displays the forms according to the behavior of the users such as exit intent, time spent on the page, scroll depth, and even previous buying history in certain instances. You can now target first-timers vs repeat visitors with varying messages and increase conversion relevance.
• Email marketing integration: If you don’t have an email provider, you can double Mailmunch up as one. Or it plays nice with the majority of the big-name email providers (Mailchimp, Constant Contact, Klaviyo, etc.), so you can drip new subscribers into your marketing campaign seamlessly.

Cons:

• Free vs paid features: Advanced functionality (like analytics, double opt-in management, and advanced targeting) and sending of the emails require a paid plan. In case you only need simple forms and want to utilize another mail service provider, the free version should suffice; otherwise, get ready to upgrade.
• Subscriber-based pricing: Rates increase with the growth of the email list. If you only use Mailmunch for capture and directly transfer the leads to another ESP, you might be able to avoid these costs.
• Outdated-looking UI: Some users find the Mailmunch form builder user interface not as slick as newer tools.
• Minimalist CRM features: While great for capturing and even sending your leads emails, Mailmunch is hardly an end-to-end CRM. If you need robust customer journey mapping beyond the sign-up and first emails, you can hook it into a fuller-spectrum CRM or choose one with it (like HubSpot).

8. HubSpot Forms — CRM-Ready Email Capture Tools (Freemium)

HubSpot Forms is the form and pop-up tool within HubSpot’s free CRM and marketing platform. It’s an excellent choice if you want to capture emails and have them directly tied into a robust contact management and email marketing system. 

With HubSpot Forms (available on the free plan of HubSpot), you can create embedded forms, standalone landing page forms, or pop-up forms that slide in or drop down on your site. The form builder is drag-and-drop and code-free. One standout feature is progressive profiling (HubSpot’s Smart Forms) — if a contact has already filled certain fields, the form can automatically ask new questions on subsequent submissions. This helps you gather more info over time without repeating questions. 

All new sign-ups go into HubSpot’s CRM database, where you can manage contacts, see their activity (like pages viewed, emails opened, etc.), and set up automated follow-up emails or workflows if you upgrade to paid tiers. The best part is that HubSpot’s core features (forms, contact management, basic email marketing, and even live chat) are free for unlimited contacts.

Pros:

• Seamless CRM connection: Every collected email is also saved immediately into the HubSpot CRM with the full contact profile. You'll be able to see where the lead came from precisely, what they're doing on your website, and manage future interactions all in one place. 
• Smart forms: Progressive profiling allows you to ask new questions every time someone fills out a form to improve data quality and personalization.
• Scalable with the HubSpot system: You can start with just the free forms and upgrade gradually (e.g., to Marketing Starter or Professional) to turn on email drip campaigns, A/B testing, better targeting, etc., without switching programs.

Cons:

• Basic aesthetics & options: HubSpot pop-up forms are sufficient but less rich and less varied than in dedicated pop-up tools.
• Fewer advanced triggers: HubSpot forms can be triggered with basic behaviors (like time on page or exit intent), but they do not have the specific targeting rules provided by specialized tools.
• HubSpot branding (minor): There is no branding in the forms themselves, although if you opt for HubSpot’s free email or other tools, there may be minor HubSpot logos in email signatures or chat widgets. This is a minor compromise for free service levels, and the paid plans eliminate the HubSpot branding altogether.
• Paid features add up: Contact capture and management is free of charge, but if you wish to offer advanced email sequences or lead scoring so you can act fully on new leads, you will have to buy the paid Marketing Hub plans.

9. Sleeknote — Most Customizable Pop-Up Design (Premium)

Sleeknote is a pop-up builder aimed at businesses that value on-brand design and user experience. It offers a level of design flexibility that stands out: instead of being locked into pre-made templates, Sleeknote lets you create forms and pop-ups almost from scratch to perfectly match your site’s look and feel. 

This is ideal for established brands that want their email capture forms to feel like a natural part of the website (and not a generic widget). You can use Sleeknote for various purposes beyond email sign-ups, too, such as promotions, collecting feedback, and guiding shoppers — all using the same drag-and-drop editor. 

Notably, Sleeknote does not offer a free plan; it’s a premium service with pricing based on website traffic (in sessions). Plans typically start at around $49–$69 per month for smaller sites and scale up for high-traffic ones. With that price comes excellent support and a focus on not slowing down your site.

Pros:

• Unmatched design control: You can fully customize every element of your pop-ups — from layout to fonts to animations. Sleeknote doesn’t confine you to a template box, which means your forms can be made to look exactly how you want.
• Multiple use cases: While many tools focus solely on email capture, Sleeknote is flexible and can replace several plugins or scripts. Users leverage it for product announcements, cross-sell banners, surveys, cart reminders — you name it. 
• Quality and support: Sleeknote is known for its customer support and focus on quality. The pop-ups load fast and are optimized for mobile. You also get detailed analytics and conversion tracking to monitor performance. If any issues arise, their team is responsive and proactive in helping customers succeed.

Cons:

• Higher price point: This is one of the more expensive options. With starting plans around $69 per month for 25,000 sessions, Sleeknote is geared towards businesses that can invest in conversion optimization.
• No free tier: There’s only a 7–14 day free trial, no forever-free version. That means if budget is a concern, you might lean towards a freemium tool instead until you can justify Sleeknote’s cost.
• Potential complexity: Paradoxically, the design freedom can be overwhelming if you’re not a designer. Some users might prefer the convenience of predefined templates.
• Traffic-based pricing: If your traffic spikes or grows, you may have to upgrade to a higher plan. This scaling cost is something to watch — it’s tailored to mid-to-large sites, so the pricing model assumes you’re getting significant value from each additional visitor conversion.

10. OptiMonk — Best for Exit-Intent & Retargeting (Freemium)

OptiMonk started as one of the pioneers in exit-intent technology and has since expanded into a full-fledged pop-up platform. OptiMonk’s claim to fame is its ability to detect when a visitor is about to leave your site (cursor movement towards the browser close button on desktop, or inactivity on mobile) and then show a targeted offer or sign-up form at that precise moment. 

Besides exit pop-ups, OptiMonk supports all standard forms (welcome pop-ups, scroll-triggered boxes, nano-bars, etc.) and has good segmentation options (like recognizing if a visitor is already a subscriber or has seen an offer before). 

There’s a free plan for up to ~15,000 page views per month, which includes all features (great for trying it out). Paid plans start at around $29 per month for higher traffic and removal of the OptiMonk branding. 

Pros:

• E-commerce-friendly features: It integrates with Shopify, WooCommerce, and other platforms, allowing for targeting based on cart data, cart value, or specific products viewed. You can create personalized exit offers, such as “You left items in your cart — sign up to save your cart or get a discount.”
• Freemium with generous limits: The free plan (10,000 pageviews per month) is quite usable for small to medium-sized sites and includes core features. Even paid tiers are reasonably priced, considering the potential boost in recovered sales.
• A/B testing & analytics: You can run split tests on your email capture forms to optimize messages, design, and triggers to improve your lead capture strategy continuously.

Cons:

• Desktop vs. mobile behavior: Exit intent is very powerful on desktop. On mobile, OptiMonk uses alternatives like back button triggers or inactivity, which can be less precise.
• OptiMonk branding: Free plan pop-ups include an OptiMonk badge. Not a big deal for testing, but for professionalism, you’ll likely want to upgrade to remove it when possible.
• Limited design templates: While functional, the default designs are simpler compared to some competitors. Achieving a fully custom look requires extra tweaking.
• Scaling costs for large sites: Large sites with high traffic volumes will find that plans scale up quickly (up to approximately $249/month for 500,000 page views). Be sure your ROI supports the upgrade to justify the cost, or negotiate custom plans.

11. Bloom (Elegant Themes) — Ideal for Bloggers on WordPress (Premium)

Bloom is an email opt-in plugin by Elegant Themes (the makers of the Divi theme) that is designed for WordPress bloggers and content creators. It focuses on providing eye-catching, non-intrusive email forms that can be placed in various spots on a blog: pop-up, fly-in, below post content, in the sidebar, or even required opt-in to unlock content. 

Bloom’s aesthetic is a big plus. It comes with over 100 pre-designed form templates that are visually appealing and can be easily styled to match your site. 

It supports basic triggers like time delay, scrolling, or reaching the end of a post. One key point: Bloom is a one-time purchase (no recurring fee), but it’s bundled with an Elegant Themes membership. Essentially, you get Bloom by buying an Elegant Themes license (around $89/year or $249 for lifetime, which also gives you their themes and other plugins). If you already use Divi or their products, Bloom is essentially “free” in that bundle. 

Pros:

• User-friendly & elegant: As the name suggests, Bloom emphasizes elegant design. The forms look professional and can be customized with colors and images to fit your style.
• Multiple form locations: Bloom covers all the popular placements: pop-up lightboxes, slide-ins, below content, inline within content, widget areas, and even locked content (great for offering content upgrades, lead magnets, or downloadables).
• One-time fee: By purchasing an Elegant Themes membership, you effectively get Bloom permanently. For Divi users, Bloom essentially comes “free” in the bundle, adding significant value if you already rely on Elegant Themes products.

Cons:

• WordPress only: Like Thrive Leads, Bloom is a WordPress plugin. If you ever move to another platform, you can’t take Bloom with you.
• No real-time advanced triggers: Bloom’s trigger options are somewhat basic and lack advanced behavior triggers like exit intent or targeting specific user segments.
• Requires Elegant Themes purchase: You can’t buy Bloom as a standalone plugin. While you do get a lot of value (access to Divi and more), it’s a larger upfront cost if you only want a plugin.
• Updates tied to membership: Technically, if you buy just an annual license and don’t renew, Bloom will continue to work, but you won’t receive updates after the year. For security and compatibility with future WP versions, you’d eventually need to renew or buy lifetime.

12. Hello Bar — Simple Sign-Up Bars & Pop-Ups (Freemium)

Hello Bar is one of the original tools in this space, known for its simplicity and focus on unobtrusive email collection. As the name implies, Hello Bar started with the idea of a slim horizontal bar at the top of your website that politely asks visitors to join your email list or see a promo message. It has since added other form types (slide-outs, modals, alert bells), but it remains a no-frills, easy-to-use solution. 

The platform is very beginner-friendly — you can design a bar or pop-up in minutes by choosing a goal (collect email addresses, drive to social, etc.), selecting a premade design, and customizing the text. 

It’s freemium: the free plan allows up to 5,000 viewings per month with basic features, while paid plans (starting around $29/month) unlock more pageviews, advanced targeting, and remove the Hello Bar branding. 

Pros:

• Extremely easy setup: Hello Bar is designed for simplicity. Even non-technical users can get a live email collection bar up and running quickly. Great for those who want results without fiddling.
• Integrations and A/B testing: It connects to major email marketing platforms (Mailchimp, AWeber, Campaign Monitor, etc.). It also offers A/B testing even on some lower-tier plans, which helps optimize your message.
• Free forever plan: The free plan (up to 5,000 views per month) lets you try Hello Bar on a small scale. This is often enough for a personal blog or small site, and it’s a good way to see if the tool boosts your conversions before investing in a paid plan.

Cons:

• Limited design & format: Hello Bar’s templates and form types are more limited compared to others. If you need complex designs or multi-step forms, Hello Bar might feel too sparse.
• Branding on free plan: The free version has a small branding/logo, which some site owners may want to avoid. Upgrading removes this, but at a cost. Also, the free plan caps at 5,000 views, which established sites might exceed quickly.
• Fewer advanced features: To keep things simple, Hello Bar forgoes many advanced targeting, complex triggers, and segmentation options found in competitors like OptinMonster or Poptin. This is usually fine for basic needs, but power users could find it limiting.
• Pricing for high traffic: The paid plans’ pricing increases as the allowed pageviews rise (e.g., $49/month for 150,000 views, $99/month for 500,000 views). At those tiers, more robust tools become competitive alternatives.

Which Is the Best Email Collection App for You?

As you’ve seen, the “best” email collector for you depends on your specific needs — whether it’s budget, ease-of-use, advanced features, or integration with your existing systems. 

That said, every tool listed can be the “best” in the right scenario. But overall, Claspo emerged as the best email capture service here because it offers a rare combination of comprehensive features, customization, and affordability. It hits the sweet spot for a broad range of users, from beginners to more advanced marketers, without locking essential features behind high paywalls.