Stacked
InTouch Technology
JEFIT
Fitness Marketing 360
Simple Workout Log
Tona
HeroSnatch
Coach's Eye
RepDB
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 512ร512 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.
Stacked RepDBRepDB'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.
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.
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.
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.
Based on our record, Stacked seems to be more popular. It has been mentiond 3 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.
This is my favorite tracking app if you want to track your weights each workout. Source: about 3 years ago
I used it for a while, but then at some point I had to log in every time my phone screen went to sleep, so I stopped using it. I had 3 on the go anyway, trying to decide which I like best. Now Iโm down to Stacked and Hardy. Source: over 3 years ago
Https://legionathletics.com/stacked/ I like this app because itโs super simple to use, is completely free, and comes preloaded with a few good programs. I have also manually added my current program to both this app and the Caliber app while I decide which I prefer. They both have their pros and cons. Try them and see which one you like best. Source: over 3 years ago
InTouch Technology - InTouch Technology's member lifecycle management solutions are built exclusively for the health & fitness industry.
JEFIT - Jefit is the #1 popular gym workout app for Android and iOS. Jefit allows you to manage your training routine and keep track of your workout progress easily.
Fitness Marketing 360 - Learn 7 fitness marketing ideas and tips that will help you generate leads and expose your brand. Design and video examples for digital marketing.
Simple Workout Log - Other Gym
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HeroSnatch - User-friendly workout tracker for CrossFit athletes
