
CouchDB
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PostgreSQL
ArangoDB
RethinkDB
MariaDB
CouchBase
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.
CouchDB
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, CouchDB seems to be more popular. It has been mentiond 25 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.
CouchDB has a "List function" feature which allows you to transform query results. - Source: dev.to / 7 months ago
CouchDB on the serer and PouchDB on the client was an attempt at making such an environment: - https://couchdb.apache.org/ - https://pouchdb.com/ Also some more pondering on local-first application development from a "few" (~10) years back can be found here: https://unhosted.org/. - Source: Hacker News / about 1 year ago
The author would be excited to learn that CouchDB solves this problem since 20 years. The use case the article describes is exactly the idea behind CouchDB: a database that is at the same time the server, and that's made to be synced with the client. You can even put your frontend code into it and it will happily serve it (aka CouchApp). https://couchdb.apache.org. - Source: Hacker News / over 1 year ago
That was my first thought! https://couchdb.apache.org/ is pretty good though is it still the incremental views with JS? - Source: Hacker News / over 1 year ago
In this post, I'll show how to simulate a multi-master synchronization with Apache CouchDB considering an off-line scenario. To reach this goal, I'll use Docker and Docker compose. - Source: dev.to / over 1 year ago
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
ArangoDB - A distributed open-source database with a flexible data model for documents, graphs, and key-values.
RethinkDB - The open-source database for the realtime web
MariaDB - An enhanced, drop-in replacement for MySQL