
Feeel
Workout.lol
Liftlog
Nike Training Club
Kenko
Grease The Groove App
Sworkit
Workout Cool
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.
Feeel
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, Feeel seems to be more popular. It has been mentiond 4 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.
I'm actually working on a free and open-source fitness app myself! https://gitlab.com/enjoyingfoss/feeel/. Source: about 3 years ago
I'm personally the author of Feeel, which is a fitness app in Flutter for Android and Linux. Source: over 3 years ago
Feeel โ A home workout app that respects your privacy by Enjoying FOSS. - Source: dev.to / over 4 years ago
I came across Feeel a home workout app in a sub and found it great to help you with workouts while it's a free open source software that does respect your privacy. Source: about 5 years ago
Workout.lol - The easiest way to create a workout routine ๐ช
Liftlog - Track workouts effortlessly with single-tap set completion, automated rest timers, and precise failure tracking.
Nike Training Club - Your ultimate personal trainer
Kenko - An Android fitness tracker that lets you plan workouts with progressive-overload, track exercises, customize workouts by focus and intensity, schedule efficiently, and enjoy a Material You design. Offers theme choices and open-source flexibility.
Grease The Groove App - Build strength with 1-minute bodyweight workouts, anytime, anywhere.
Sworkit - Sworkit is one of the smartest apps for managing your workout regimen available on the market. It is trusted by more than 25 million individuals, and it can fully customize a workout for you at any time... read more.