Grow SendGrid Customer and Subscriber Lists with Claspo

Grow SendGrid Customer and Subscriber Lists with Claspo

A SendGrid popup builder packed with lead-capture features

A SendGrid popup builder packed with lead-capture features

  • Create customizable SendGrid forms and popups

  • Target forms based on visitor behavior and traffic source

  • A/B test form designs, messages, and offers

  • Send mapped subscriber data to SendGrid

Based on
50+ reviews once

Based on 50+ reviews once

SendGrid signup forms and popups created with Claspo
SendGrid signup forms and popups created with Claspo

Build SendGrid forms for every list-growth campaign

Build SendGrid forms for every list-growth campaign

Create newsletter forms, lead magnets, discount popups, contact forms, surveys, and multi-step signup flows.

SendGrid forms and lead-capture popups created with Claspo
SendGrid forms and lead-capture popups created with Claspo
SendGrid forms and lead-capture popups created with Claspo

What's inside

What's inside

  • User-friendly drag-and-drop editor

    User-friendly drag-and-drop editor

  • 1,000+ CRO-ready templates

    1,000+ CRO-ready templates

  • Mobile-responsive popup layouts

    Mobile-responsive popup layouts

  • Advanced targeting and display rules

    Advanced targeting and display rules

  • Team roles and permissions

    Team roles and permissions

  • Built-in analytics and A/B testing on autopilot

    Built-in analytics and A/B testing on autopilot

  • Simple script installation

    Simple script installation

  • Limitless integration possibilities

    Limitless integration possibilities

  • Multilingual forms and popups

    Multilingual forms and popups

  • 24/7 Customer support

    24/7 Customer support

  • Custom design and integration assistance

    Custom design and integration assistance

How to connect Claspo to SendGrid

How to connect Claspo to SendGrid

Connecting Claspo to SendGrid with an API key
Connecting Claspo to SendGrid with an API key
  • Integrating Claspo with SendGrid takes no longer than 5 minutes

  • You can Integrate with any other CRM, CMS, or analytics platform along with SendGrid

  • Take advantage of a step-by-step SendGrid integration walkthrough

  • Need help? No worries, our team is ready to guide you through the integration process 24/7

Stay ahead of the competition with advanced features

Stay ahead of the competition with advanced features

Use targeting, validation, localization, A/B testing, and analytics to collect more relevant subscriber data for your SendGrid campaigns.

Silent intervals and overlap protection for SendGrid forms
Silent intervals and overlap protection for SendGrid forms
Silent intervals and overlap protection for SendGrid forms

Streamline conversions

Annoyance safeguard

Set a pause between different forms and popups so visitors see each message separately.

Overlap protection

Claspo prevents widgets with similar display conditions from appearing on top of one another.

Get the quality data

Email domain spellchecker

Detect common mistakes in email domain names before contacts reach your SendGrid list.

Business email validation

Configure forms to accept business email addresses when your campaign targets professional leads.

Email domain validation for SendGrid form submissions
Email domain validation for SendGrid form submissions
Email domain validation for SendGrid form submissions
Multilingual SendGrid forms created with Claspo
Multilingual SendGrid forms created with Claspo
Multilingual SendGrid forms created with Claspo

Be flexible

Adaptive localization

Create several language versions of one form. Claspo displays the appropriate version based on the visitor’s browser or selected website language.

Validate and test

Extend analytics capabilities

Track form views, submissions, and conversion rates in Claspo. Run A/B tests and send widget events to Google Analytics through Google Tag Manager for further analysis.

A/B testing and conversion analytics for SendGrid forms
A/B testing and conversion analytics for SendGrid forms
A/B testing and conversion analytics for SendGrid forms

What our clients say about us

What our clients say about us

MAN's SET

Underwear brand

A 10% increase in email-driven sales from introducing a gamified pop-up at the very first step of the funnel was a big win for us — especially since email already accounts for about 10% of our total revenue.

Capterra

Capterra

MAN's SET

Underwear brand

A 10% increase in email-driven sales from introducing a gamified pop-up at the very first step of the funnel was a big win for us — especially since email already accounts for about 10% of our total revenue.

Capterra

Capterra

OFFCULTURE

Apparel & Clothing brand | USA

Highly recommended for brands that care about experience as much as growth.

Shopify

OFFCULTURE

Apparel & Clothing brand | USA

Highly recommended for brands that care about experience as much as growth.

Shopify

Le Noof

Premium pet accessories | Latvia

Claspo has been an excellent addition to our store. We definitely recommend this plugin to anyone looking to boost their store’s performance.

Shopify

Le Noof

Premium pet accessories | Latvia

Claspo has been an excellent addition to our store. We definitely recommend this plugin to anyone looking to boost their store’s performance.

Shopify

Yago Matcha

Matcha online shop | Switzerland

Great tool for creating sticky banners and popups and very fair value for money compared to others!

Shopify

Yago Matcha

Matcha online shop | Switzerland

Great tool for creating sticky banners and popups and very fair value for money compared to others!

Shopify

Centroartesano

Fine arts and crafts shop | Spain

The widget catalog is varied and the pop up is compatible with multiple languages. Perfect for international stores.

Shopify

Centroartesano

Fine arts and crafts shop | Spain

The widget catalog is varied and the pop up is compatible with multiple languages. Perfect for international stores.

Shopify

Pet Bites

Pet supplies | Australia

Claspo has been an excellent addition to our store. We definitely recommend this plugin to anyone looking to boost their store’s performance.

Shopify

Pet Bites

Pet supplies | Australia

Claspo has been an excellent addition to our store. We definitely recommend this plugin to anyone looking to boost their store’s performance.

Shopify

Everwild Retreats

Luxury vacation home rental | USA

Claspo helps me get better engagement and results from my ads.

G2

Everwild Retreats

Luxury vacation home rental | USA

Claspo helps me get better engagement and results from my ads.

G2

Tastebuds

Premium gift hampers | Australia

It’s very easy to install, fast, and packed with powerful features that help boost sales and improve customer engagement.

Shopify

Tastebuds

Premium gift hampers | Australia

It’s very easy to install, fast, and packed with powerful features that help boost sales and improve customer engagement.

Shopify

MAN's SET

Underwear brand

Selling 50% of the collection on pre-order before stock was a real turning point for us. It showed that gamified conversion-focused pop-ups can be a powerful tool for validating demand.

Capterra

MAN's SET

Underwear brand

Selling 50% of the collection on pre-order before stock was a real turning point for us. It showed that gamified conversion-focused pop-ups can be a powerful tool for validating demand.

Capterra

私のストア

Shopify store | Japan

I've tried exit intent popup, multiple-question popup and it helps us gain good insights to improve our strategy.

Shopify

私のストア

Shopify store | Japan

I've tried exit intent popup, multiple-question popup and it helps us gain good insights to improve our strategy.

Shopify

Supercharge SendGrid With Claspo

Supercharge SendGrid With Claspo

Supercharge SendGrid With Claspo

Frequently Asked Questions

Frequently Asked Questions

Create an API key in SendGrid under Settings → API Keys. In Claspo, add SendGrid as an integration, paste the key, select a subscriber list, and map your form fields.

Select Restricted Access when creating the API key, then give it Full Access to Marketing. This permission allows Claspo to add submitted contacts to the selected SendGrid list.

Yes. You can select which SendGrid list receives new subscribers and map your Claspo form fields to the corresponding SendGrid fields. The Email field is required. You can also add static values to each submission.

New SendGrid subscriptions use single opt-in confirmation by default.