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RepDB
RepDB is a one-time-purchase exercise dataset with animations for developers building fitness and workout apps — 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 600+ exercises with flat-style 512×512 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 — 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.
Avalonia RepDBAvalonia is recommended for developers who are familiar with XAML-based technologies and are looking to build cross-platform desktop applications. It's particularly well-suited for projects targeting multiple desktop environments with a single codebase, as well as for those who value a consistent UI experience across different platforms.
RepDB's answer:
RepDB is sold as a one-time download, not a metered API — 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 — 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, Avalonia seems to be more popular. It has been mentiond 157 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.
> I like WASM and I want to like WASM but the rate of maturity within the ecosystem is incredibly abysmal. The C# toolchain for WebAssembly is pretty good. You can do a lot with Avalonia and Uno: https://avaloniaui.net/ https://platform.uno/ Here's a C# clone of Visual Basic compiled to WebAssembly: https://bandysc.github.io/AvaloniaVisualBasic6/. - Source: Hacker News / 4 months ago
So when I set out to ship Ditto Edge Studio — our debug and query tool for the Ditto edge database — I needed it to run on Windows, Linux, and macOS. On the Mac I already had a polished SwiftUI build. For everyone else, I turned to Avalonia. This post is about what I learned bringing the two into the same family, specifically around two features that had no business being easy to port:. - Source: dev.to / 5 months ago
I would bet in Avalonia UI. It's like WPF but cross-platform. https://avaloniaui.net/. - Source: Hacker News / 5 months ago
But there are libraries that do that, e.g. https://avaloniaui.net. - Source: Hacker News / 6 months ago
Because I didnt see it already mentioned. Avalonia[1] and Uno[2] for C# are also really great if you want to write windows apps. I wrote some in Avalonia that worked incredible nice on Linux and Windows. You dont have to use MVVM or AXML for example Uno allows for C# Markup[3] to be used instead or MVUX instead of MVVM. I personally hate MVVM and AXML but you are not forced to use them. For Avalonia I dabbled in... - Source: Hacker News / 6 months ago
Uno Platform - Build Mobile, Desktop and WebAssembly apps with C# and XAML.
Flutter - Build beautiful native apps in record time 🚀
Qt - Powerful, flexible and easy to use, Qt will help you not only meet your tight deadline, but also reduce the maintainable code by an astonishing percentage.
Icons8 Lunacy - Free graphic design software with built-in resources. Fully compatible with Sketch and works offline
wxWidgets - wxWidgets: Cross-Platform GUI Library
Ripcord - A desktop chat client for Discord and Slack
