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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.
Write.as 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, Write.as seems to be more popular. It has been mentiond 60 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.
There's a lot of it on the Fediverse tech circles. I find a lot of it through following the #Fediverse tag on Mastodon. Bandwagon.fm: A federated platform for musicians and fans: https://bandwagon.fm/ Bonfire: A modular server for building communities with a wide variety of services: https://bonfirenetworks.org/ write.as: "Type words, put them on the internet." https://write.as/. - Source: Hacker News / 8 months ago
And it's very easy to start with something that is also "social": - https://write.as - a https://writefreely.org instance that also syncs with Mastodon, so people can see/discover/subscribe/ comment on your posts without extra hassle of setting up comments or other privacy invading tools. - https://bearblog.dev - just text, very simple and quick to get started. - Source: Hacker News / 8 months ago
The Write.as MCP Server transforms how AI systems interact with Write.as, the minimalist blogging platform beloved for its simplicity and privacy-first approach. By implementing the Model Context Protocol (MCP), this server enables LLMs, agents, and applications to create, retrieve, and manage anonymous posts without requiring any credentials whatsoever. - Source: dev.to / about 1 year ago
There's a ton of those platforms, varying from extremely unknown to fairly well established. I'm pretty sure multiple of them end up as a Show HN every year. The only thing on your list they generally don't do is domain registration, but keeping that separate is generally a good thing. Sibling mentioned bearblog.dev, I'll mention write.as[1]. [1]: https://write.as/. - Source: Hacker News / over 1 year ago
I'd noticed some years back that this project seems to have started with a pretty strong anonymity story: https://write.as/ That seemed to diminish in emphasis a few years ago, stopped accepting accounts that didn't give you a credit card end of 2021, and some year recently (last year? I forgetโฆ) seemed as though the warrant canary missed a couple updates. (It's up to date now, with an assertion of no warrants... - Source: Hacker News / almost 2 years ago
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