
Resend
Mailmodo
Customer.io
Postmark
Mailgun
MailerLite
Folderly
We bought a billboard in Times Square and we're letting you advertise your startup on it!It's free.

Intercom
Customer.io
MooSend
MailerLite
Sendy
EmailOctopus
TinyLetter
Send activities-based emails to your users to increase engagement and conversion rate.
Which is more popular?
Based on our record, Loops.so seems to be more popular. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | loops.so | undersend.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | 2020 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Loops.so yet.
With Undersend, you can create and send personalized marketing campaigns to your users based on their activities. You can trigger a message when a user does or doesn't do an action. Each email can be personalized by the user properties like first name, sign up date, or whatever you want....
What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Loops.so yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Loops.so and Undersend. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I thought this would be easy using any of the email marketing tools out there like Resend or Loops, but this was not the case. All of the available tools shockingly handle campaigns at a user instead of organization level. - Source: dev.to / 9 months ago
Previously, I used Loops.so to send out newsletters. However, it involved the tedious task of reformatting the blog post within their campaign editor and re-uploading all media. - Source: dev.to / almost 2 years ago
We have two members with substantial followings, so we designed a landing page for a waitlist in Figma. Implementing in Next.js, hosted on Vercel and integrated with Loops.so, allowed us to efficiently control the design and UX and ramp... - Source: dev.to / about 2 years ago
Tracking Undersend since Mar 2021.
When comparing Loops.so and Undersend, you can also consider the following products.


Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
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Helping marketers build interactive emails and get better conversions from email marketing
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We make it easy to send emails triggered by user behavior. Build, measure and improve your emails to activate and retain users
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Moosend allows you to design and send your email marketing campaigns and track the results from an easy-to-use web interface as well as a direct SMTP server connection for your smtp client or web application.
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Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.
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