
UTM
VirtualBox
Parallels Desktop
VMware Workstation
QEMU
Windows Sandbox
virt-manager
iSH
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 ($299) adds the full catalog in classic white-background style. Standard ($499) 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.
RepDBRepDB'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, UTM seems to be more popular. It has been mentiond 91 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.
This group’s approach of treating the devices as many weaker servers (basically a raspberry pi cluster) sounds like the most realistic way to reuse phone hardware at scale, especially with the backing of the actual hardware vendor. It’s a genuine shame how locked down iPhones are compared to even Android. Hypothetically you could run Linux inside UTM[0] but outside the EU Apple makes it intentionally difficult,... - Source: Hacker News / 3 months ago
Why not just use https://getutm.app/ ? - Source: Hacker News / 6 months ago
UTM is a QEMU-based virtual machine app that can run full Linux distributions on iOS. Two versions exist:. - Source: dev.to / 7 months ago
- Surprised UTM wasn't mentioned here. Depending on the version of iPad, you should be able to get UTM SE on it, which will let you run a virtualized operating system on it. https://getutm.app/ - There appear to be some jailbreaks too - iSH would let you install and run local linux packages. - Source: Hacker News / about 1 year ago
UTM runs virtual machines on iOS and has been around a while: https://getutm.app Issue is that Apple doesn’t allow apps to run JIT so if you want the JIT version of UTM, you need to sideload or Jailbreak. The non-JIT version is on the App Store. - Source: Hacker News / over 1 year ago
VirtualBox - VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as...
Parallels Desktop - Parallels Desktop 10 is a hardware and operating system virtualization program designed for the users of Mac Operating System to enjoy the most of the versions of Windows operating systems in their machine.
VMware Workstation - VMware Workstation is a multiple operating system handler to easily evaluate the any other type of new operating systems.
QEMU - QEMU (short for "Quick EMUlator") is a free and open-source hosted hypervisor that...
Windows Sandbox - a new lightweight desktop environment tailored for safely running applications in isolation.
virt-manager - The virt-manager application is a desktop user interface for managing virtual machines through...