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

BuiltWith
Wappalyzer
WhatRuns
StackScan
W3Techs
PublicWWW
ZoomInfo
Explore real-time technology identification and gain insights into the tools powering top websites with StackDetect.

Which is more popular?
Based on our record, Loops.so seems to be more popular. It has been mentioned 10 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | loops.so | stackdetect.vercel.app |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Loops.so yet.
At StackDetect, we’re passionate about unlocking the power of technology for businesses of all sizes. Our platform offers more than just insights into tech stacks – we provide actionable data that empowers companies to make informed decisions, optimize their operations, and stay ahead of the...
What each product offers, as listed by its team.


No features have been listed yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Loops.so and StackDetect.
StackDetect's answer:
It is a top leading competitor to other websites
StackDetect's answer:
Free low cost, and highly UX UI friendly
StackDetect's answer:
Self driven start up company that is bootstrapped and audience driven.
StackDetect's answer:
NodeJS MongoDB HTML JS Git CSS TS
StackDetect's answer:
anyone that is familiar with BuiltWith, WAAMPLYZER. This is a competitor to most.
StackDetect's answer:
IT / Technology Analysis
Share your experience with using Loops.so and StackDetect. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Start-here: Transactional + newsletter → Resend (3,000/mo, 100/day, 3 domains on Free). Staging inbox → Mailtrap sandbox (tiny on Free). Marketing audience → Loops. OTP texts → Twilio after trial credit. - Source: dev.to / 11 days ago
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 / 10 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 / about 2 years ago
Tracking StackDetect since Feb 2025.
When comparing Loops.so and StackDetect, you can also consider the following products.



Helping marketers build interactive emails and get better conversions from email marketing
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Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
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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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Extension that helps you identify technologies used on any website at the click of a button.
Compare WhatRuns to Loops.so or StackDetect: