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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.
Tractive
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, Tractive seems to be more popular. It has been mentiond 11 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.
The API allows you to get info from TRACTIVE like the last location of your pet, make the tracker to buzz or even you can turn on/off a LED on the tracker to find your pet. Source: almost 3 years ago
Which is what, 10 times as expensive as something purpose made like https://tractive.com/ ? - Source: Hacker News / almost 3 years ago
Hi all- in seeing some posts about pets being stolen/lost, I highly recommend getting a pet tracker that fits on your collar. For ~$5-10/month, for your peace of mind, it is absolutely worth it. We have a tractive collar on our dog, and there are other options out there too. It's useful for when your dog escapes, if you have a dog walker, etc. An Apple airtag is only useful if there is a phone nearby- but with a... Source: about 3 years ago
We are having daily walks where he is off the leash and it is working out great for us. He does his own thing and wanders around but he never lets the distance between us get too big, Iโd say maximum 50 meters and then he is running back to me. I need to mention that we are using a tracking device always when he is off the leash(https://tractive.com/). Iโve always rewarded and praised him when he comes back to... Source: over 3 years ago
Cats definitely get lost less than dogs do. I could tell that kitty was thinking about his food bowl. I saw him licking his chops at the end of the video. I have a https://tractive.com/ tracker on my cat, it works awesome. If he doesn't come home, I go to him. Source: almost 4 years ago
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