
Resend
Customer.io
Folderly
SENDER
MailChimp
Selzy
Plunk
We bought a billboard in Times Square and we're letting you advertise your startup on it!It's free.

Resend
Mailgun
SendGrid Email API
Brevo
Postmark
GoodSender
Plunk
Developer-focused transactional email API with Bring-Your-Own-SES support.

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.
|
|
|
|
|---|---|---|
| Website | loops.so | sendfleet.net |
| Pricing | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Loops.so yet.
SendFleet is a secure, high-performance transactional email API designed specifically for developers and product teams. It provides a simple, reliable REST interface to send critical application notifications, password resets, and order confirmations without the complexity of traditional email...
What each product offers, as listed by its team.


No features have been listed yet.
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.


As answered by people managing Loops.so and SendFleet.
SendFleet's answer:
SendFleet was born out of pure engineering frustration with legacy transactional email providers. As developers, we loved the modern, sleek APIs of expensive providers, but hated their massive price markups and intrusive data retention policies. On the flip side, using raw Amazon SES was incredibly cost-effective but lacked a developer-friendly UX and modern logging. We built SendFleet to bridge this exact gap - giving developers a beautifully designed REST API, powered by the unmatched economics and privacy of their own cloud infrastructure.
SendFleet's answer:
Rapidly growing B2B SaaS startups requiring scalable app notifications. Privacy-first FinTech platforms needing zero-retention transactional data pipelines. Independent software developers and indie hackers optimizing their cloud infrastructure costs. Digital agencies managing high-volume email delivery across multiple client applications.
SendFleet's answer:
The primary audience consists of software engineers, CTOs, indie hackers, and product teams building B2B SaaS, FinTech, or E-commerce platforms. It specifically targets technical professionals who demand rapid API deployment, predictable cloud costs, and strict compliance over user data privacy.
SendFleet's answer:
Traditional competitors lock you into expensive pricing tiers and store your users' private data on their platforms. SendFleet eliminates legacy markup fees by letting you leverage AWS SES pricing ($0.10 per 1,000 emails), drastically reducing costs by up to 80% while providing a modern, developer-friendly REST API, instant webhooks, and complete data privacy.
SendFleet's answer:
SendFleet separates the developer API layer from the underlying email delivery infrastructure. Through its Bring Your Own Cloud (BYOC) model, developers can route emails through their own Amazon SES account, ensuring that sensitive message data and recipient details are never stored or persisted on SendFleet’s servers.
Share your experience with using Loops.so and SendFleet. 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 SendFleet since May 2026.
When comparing Loops.so and SendFleet, you can also consider the following products.


We make it easy to send emails triggered by user behavior. Build, measure and improve your emails to activate and retain users
Compare Customer.io to Loops.so or SendFleet:

A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.
Compare Mailgun to Loops.so or SendFleet:

Folderly is an all-in-one email deliverability platform to supercharge your email performance. Locate, solve, prevent email deliverability pitfalls, and ensure that your emails reach the Inbox folder.
Compare Folderly to Loops.so or SendFleet:

You can use SendGrid via SMTP or our simple to use Web API. Understand how best to utilize SendGrid.
Compare SendGrid Email API to Loops.so or SendFleet:

Easy to use, powerful and affordable email marketing application.
Compare SENDER to Loops.so or SendFleet: