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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.
Darling 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, Darling seems to be more popular. It has been mentiond 9 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.
In practice - no. There's Darling https://darlinghq.org/ but it only supports basic cli things for now. There was some idea for gui support https://github.com/darlinghq/darling-appkit-gui but that is not working and the project is very incomplete. - Source: Hacker News / 12 months ago
Not really possible (yet). Darling tries to do this, but so far it can mainly just run some command-line Darwin software (the open source part of Apple's OSes). Some simple GUI apps too, but you won't be running something like Xcode on Linux any time soon. Source: over 3 years ago
I really look forward to reliable (modern) macOS emulation, a la wine. I miss some of my wee little Mac utilities / games now that Iโm in Linux full-time. Iโm rooting for the guys working on stuff like Darling[0], but it looks like they still have a long road ahead. [0] https://darlinghq.org/. - Source: Hacker News / over 3 years ago
In addition to wine, there's also mono and darling ... Source: over 3 years ago
Because they are different kernels, Closest thing is Darling (compatibility layer like Wine) but it's still WIP (Work In Progress). Source: about 4 years ago
Wine - Open Source Software for running Windows applications on other operating systems.
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WineBottler - WineBottler is an App to manage and wrap your Windows apps into convenient OS X apps.
Turbo.net for Mac - Turbo.net for Mac runs PC and other apps on Mac without VMs.
PlayOnLinux - PlayOnLinux will allow you to play your favorite games on Linux easily
Porting Kit - Install Windows Games in Mac OS X natively and easily and for free with Wineskin technology