Software Alternatives, Accelerators & Startups

Sendy VS RepDB

Compare Sendy VS RepDB and see what are their differences

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Sendy logo Sendy

Sendy is a self hosted newsletter app that sends emails 100x cheaper viaย Amazon SES

RepDB logo RepDB

Exercise dataset for fitness apps: transparent background, animations, no subscription
Visit Website
  • Sendy Landing page
    Landing page //
    2023-10-20
  • RepDB
    Image date //
    2026-07-21
  • RepDB Landing page
    Landing page //
    2026-07-21
  • RepDB
    Image date //
    2026-07-21

RepDB is a one-time-purchase exercise dataset for developers building fitness and workout apps โ€” not a subscription, not a rate-limited API. You download the data once and own it: JSON (and SQLite on the higher tier), WebP images, and full EN/DE/ES translations, with no per-request billing and no dependency on our servers staying up.

A free tier includes 400 exercises with flat-style 512ร—512 images, attribution-licensed for commercial in-app use. The Starter tier ($199) adds the full catalog in classic white-background style. Standard ($399) adds transparent 1024px images, looping animations, exercise relations (similar/progressions/regressions), workout templates, and embeddings โ€” exclusive to that tier.

Every exercise includes muscle-group highlighting, equipment/muscle icons, MET values, and safety/goal tags. Compared to GIF- or JPG-based competitor APIs, RepDB images are transparent WebP with no watermarks, so they drop into any app UI without a white box around them.

Sendy

Website
sendy.co
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Startup details
Country
Singapore

RepDB

Website
repdb.co
$ Details
freemium $199.0 / One-off
Platforms
Web Mobile
Release Date
2026 July

Sendy features and specs

  • Cost-effective
    Sendy provides a cost-effective solution for email marketing by allowing users to send emails via Amazon SES, which is significantly cheaper than other email marketing services.
  • Self-hosted
    Since Sendy is a self-hosted application, users have full control over their data and server environment, providing better privacy and customizability.
  • High Deliverability
    By leveraging Amazon SES, Sendy offers high deliverability rates, ensuring that emails land in recipients' inboxes rather than spam folders.
  • One-time Payment
    Sendy requires a one-time payment for the license, making it a more affordable option in the long run compared to recurring subscription models.
  • Rich Features
    Sendy includes many features such as campaign tracking, list segmentation, autoresponders, and integration with other applications, making it a comprehensive email marketing solution.

Possible disadvantages of Sendy

  • Technical Setup
    As a self-hosted application, setting up Sendy requires some technical knowledge and can be challenging for users who are not familiar with server management and configuration.
  • Limited Integrations
    Unlike cloud-based email marketing services, Sendy offers fewer integrations with other third-party applications and services, which may limit its usability for some users.
  • No Built-in Customer Support
    Sendy does not offer dedicated customer support; users must rely on the community forum and documentation for troubleshooting and assistance.
  • Dependence on AWS
    Sendy specifically relies on Amazon SES for email delivery. If AWS services experience downtime or issues, Sendy's email delivery could be affected.
  • Initial Cost
    While Sendy is generally cost-effective in the long term, the initial license purchase might be a barrier for individuals or small businesses with very limited budgets.

RepDB features and specs

  • WebP Format Benefits
    start+peak exercise images
  • JSON
    relations, metadata, equipment
  • Transparency
    transparent background
  • Animations
    Animated loops in paid tier

Analysis of Sendy

Overall verdict

  • Sendy is a solid option for businesses looking to save on email marketing costs and have the capability to manage their own hosting. It offers a good balance of features and simplicity for those who can handle a little technical setup.

Why this product is good

  • Sendy is often praised for its cost-effectiveness and simplicity, especially for small to medium-sized businesses looking to manage email campaigns. It integrates with Amazon SES, allowing users to send bulk emails at a reduced cost. Users appreciate its straightforward interface, performance reports, and the ability to manage multiple brands under one account. However, it requires you to have your own hosting, which could be a limitation for some.

Recommended for

    Sendy is particularly recommended for small to medium-sized businesses that have a tech-savvy team capable of handling hosting requirements, as well as those who are looking for a low-cost solution to send bulk emails efficiently.

Sendy videos

Email Marketing With Sendy - Review & Tutorial

More videos:

  • Review - Why I Decided To Get Rid Of Get Sendy.co & What I Use Now
  • Review - Sendy Review - Self Hosted Autoresponder, Affordable Alternative

RepDB videos

No RepDB videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Sendy and RepDB)
Email Marketing
100 100%
0% 0
Datasets
0 0%
100% 100
Newsletter Marketing
100 100%
0% 0
Developer Tools
0 0%
100% 100

Questions & Answers

As answered by people managing Sendy and RepDB.

What makes your product unique?

RepDB's answer:

RepDB is sold as a one-time download, not a metered API โ€” you own the JSON/SQLite data and WebP images outright, with no rate limits, no per-request billing, and no risk of the vendor cutting off access. It's also the only dataset in this space with EN/DE/ES translations, transparent (alpha-channel) images with no watermark, muscle-group highlighting, safety/goal tags, and looping animations on the higher tier.

What's the story behind your product?

RepDB's answer:

RepDB grew out of a consumer workout app its creator was building solo. Sourcing exercise images and data meant either paying for a subscription API with usage caps and no caching rights, or producing everything from scratch. The illustrated, multi-language dataset was built for us first, then split out as its own product once it became clear other indie developers had the same problem and preferred to buy the data outright rather than rent it through an API.

Why should a person choose your product over its competitors?

RepDB's answer:

Most alternatives are subscription APIs โ€” you pay monthly, you're capped on requests, and ExerciseDB's terms of use explicitly forbid caching or storing the data at all, so every image render is a live paid API call. RepDB is the opposite: pay once, download the files, self-host with zero ongoing dependency. It's also the only option offering true DE/ES localization and transparent images instead of a white box behind every exercise.

How would you describe the primary audience of your product?

RepDB's answer:

Solo developers and small teams building fitness or workout-tracking apps (iOS, Android, web) who need licensed exercise images and structured exercise data, but don't want to build their own media pipeline or depend on a rate-limited third-party API.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Sendy and RepDB

Sendy Reviews

Cheap Email Marketing Services: 6 Great Budget Tools Compared
๐Ÿ’ธ cheapest Sendy: For a one-time fee, you can install the Sendy software on your own server and then affordably deliver emails via Amazon SES.
Source: themeisle.com
Any good Mailchimp alternatives?
Separately, been keeping a list of Mailchimp alternatives. Sendfox works pretty well, and I plan to try out Sendy sometime soon.
7 Cheaper Mailchimp Alternatives to Consider in 2019
Once you install Sendy on your own server, youโ€™ll connect to Amazon SES to send the actual emails, which costs just $0.0001 per email (maybe an easier way to look at that is $1 per 10,000 emails). Plus, thereโ€™s no cost for more subscribers, which makes it a great option for big lists.

RepDB Reviews

We have no reviews of RepDB yet.
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Social recommendations and mentions

Based on our record, Sendy seems to be more popular. It has been mentiond 45 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Sendy mentions (45)

View more

RepDB mentions (0)

We have not tracked any mentions of RepDB yet. Tracking of RepDB recommendations started around Jul 2026.

What are some alternatives?

When comparing Sendy and RepDB, you can also consider the following products

MailChimp - MailChimp is the best way to design, send, and share email newsletters.

MailerLite - Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!

GetResponse - Email marketing from GetResponse. Send email newsletters, campaigns, online surveys and follow-up autoresponders. Simple, easy interface. FREE sign up.

SendPulse - Maximizing e-mail marketing open rates automatically

Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.

Publicate - Build Beautiful Emails. Export and Send Anywhere.