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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.
interviewing.io 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.
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Interviewing.io charges $100โ225 per session. Genuinely useful, but you can't do 5 sessions a day for a month. And a stranger on a 45-minute call doesn't know your history. - Source: dev.to / 5 months ago
Mock interviews: Pramp, Interviewing.io (free tier), or batchmates. Aim for 8โ10 mocks. - Source: dev.to / 6 months ago
Interviewing is very performative so along the way you should absolutely do mock interviews just to get the nerves out and to practice being calm under pressure. I paid for several using Interviewing.io. They were certainly helpful, but I actually found the free ones I did with peers, both on interviewing.io and tryexponent.com to be more helpful. Why was it more helpful? Itโs worthwhile being on the interview... - Source: dev.to / 11 months ago
Interviewing.io โ Anonymous mock interview platform with real engineers from top tech companies. - Source: dev.to / over 1 year ago
Conduct Mock Interviews: Simulate interview scenarios using platforms like Pramp or Interviewing.io. This helps you manage time, pressure, and articulating your thought process. - Source: dev.to / almost 2 years ago
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