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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.
Stencyl 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, Stencyl seems to be more popular. It has been mentiond 5 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.
My 11 year old cousin loves Scratch. He's made several games and "movies" using it. Another more powerful alternative is Stencyl: https://stencyl.com/. - Source: Hacker News / almost 2 years ago
I have been using Stencyl for my personal 2d games. Source: about 3 years ago
I thought he used Stencyl (which has block coding like Scratch). Source: over 4 years ago
Isn't that what unity is? Honest question, I've never used it. There's also stencyl. Source: over 4 years ago
I'd choose something that requires less explicit programming, like Construct. It's proprietary software (I'm not affiliated with it in any way), but they have reasonable prices for education, and I know a person who has had success teaching kids to make basic games with it (with Construct 2, I think, which don't people prefer to Construct 3). Some similar tools which I haven't tried are Stencyl or GDevelop (this... Source: over 4 years ago
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CryENGINE - The most powerful game development platform is now available to everyone. Full engine source code.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
GDevelop - GDevelop is an open-source game making software designed to be used by everyone.
