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RepDB
RepDB is a one-time-purchase exercise dataset with animations for developers building fitness and workout apps — 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 600+ exercises with flat-style 512×512 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 — 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.
HackerWeb
RepDBRepDB's answer:
RepDB is sold as a one-time download, not a metered API — 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 — 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.
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Https://hckrnews.com lists all the HN stories that have hit the front page, in reverse chronological order. I find this easier than constantly refreshing the HN frontpage. (I'm not sure what the polling interval is; some stories might slip through the cracks?) I also made a mashup of: - https://hckrnews.com reverse chronological story order - https://hackerwebapp.com UI - Several enhancements I personally wanted.... - Source: Hacker News / about 2 years ago
I no longer compulsively F5 to reload Hacker News thanks to the chronological feed at https://hckrnews.com - You can filter by top 10, 20, or 50% - Different days are clearly labeled I also made my own custom front-end for this feed: https://hw.leftium.com/ - (Actually a heavily modified mashup of https://hackerwebapp.com/). - Source: Hacker News / about 2 years ago
Https://hw.leftium.com/ shows only root comments. Example: https://hw.leftium.com/#/item/36200884 Can even show just root replies to a comment: https://hw.leftium.com/#/item/36201108 Each page has a link to the original HN page. --- My app doesn't show the default HN feed; it shows the list of all items that have hit the front page in reverse chronological order (like https://hckrnews.com/). If you want the... - Source: Hacker News / about 3 years ago
HckrWeb is my heavily modified fork of HackerWeb[1] with data from hckr news[2]. I mashed together the simple, readable UI of HackerWeb with the chronological ordering from hckr news. You can also share links to readable HN comments like this: https://hw.leftium.com/#/item/23741256 Source code available here: https://github.com/Leftium/hckrweb [1]: https://hackerwebapp.com/. - Source: Hacker News / over 5 years ago
hckr news - An unofficial, alternative interface to Hacker News
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