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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.
Hygraph
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, Hygraph seems to be more popular. It has been mentiond 8 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.
Dev budget under $25k: Statamic[1] or Wordpress (with ACF[2] & Acorn[3] Professional work above that: Sanity[4] or Hygraph[5] [1] https://statamic.com [2] https://www.advancedcustomfields.com [3] https://roots.io/acorn/ [4] https://www.sanity.io [5] https://hygraph.com. - Source: Hacker News / 12 months ago
Sanity, Contentful, and Hygraph are a few examples. Very often a CMS has a pricing page, but is also open-source, and has docs on how to self-host it for free. A great example of that is Directus, and there is no need to avoid those CMS. - Source: dev.to / over 1 year ago
Hygraph - Offers free tier for small projects. GraphQL first API. Move away from legacy solutions to the GraphQL native Headless CMS - and deliver omnichannel content API first. - Source: dev.to / over 2 years ago
I chose Hygraph for managing posts and other content on my website. It offers a GraphQL API and an intuitive UI to easily define schema and organize content. To interact with the API, I used graphql-request library which provides a convenient way to make GraphQL requests. - Source: dev.to / about 3 years ago
Hygraph is a cloud platform for creating databases, tables, and powerful GraphQL APIs. It allows you to create content on the fly with features such as text editors, workflows, and advanced roles. - Source: dev.to / over 3 years ago
Strapi - Manage any content. Anywhere. The leading open-source headless CMS. 100% JavaScript / TypeScript and fully customizable.
Contentful - You don't need another CMS. You need a better way to manage content โ unified, structured, and ready to deploy to any digital channel.
Sanity.io - Sanity.io a platform for structured content that comes with an open-source editor that you can customize with React.js.
Payload CMS - Headless CMS and Application Framework built with Node.js, React and MongoDB
Directus - Free and Open-Source Headless CMS
Contentrain - Contentrain is the first scalable content management platform combining Git and Serverless technologies.