Barrier
Synergy
Input Director
Ultramon
DisplayFusion
Input Leap
Actual Multiple Monitors
ShareMouse
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.
Barrier 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, Barrier seems to be more popular. It has been mentiond 349 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.
You kind of can do this already with a raspberry pi strapped to the back of a monitor and "barrier", the successor to synergy, to use the keyboard and pointing device of your laptop on as many displays on the same desk as you want. Each one is an independent computer. https://github.com/debauchee/barrier. - Source: Hacker News / about 1 month ago
I used to and still do use and recommend Barrier for sharing a mouse and clipboard and keypresses across OS's. It works for Mac, Windows, and Linux. They have a fork input-leap... It doesn't work, and there is a paid on from the same original developers called Synergy that works well too. - Source: dev.to / almost 2 years ago
Barrier is a Cross-Plattform, open source Synergy fork that works quite well without any additional HW too [0] [0] https://github.com/debauchee/barrier. - Source: Hacker News / over 2 years ago
Synergy is open core, these portions are licensed as GPL: https://github.com/symless/synergy-core/#License-1-ov-file. - Source: Hacker News / over 2 years ago
Prior to Synergy going to closed source, it was forked into Barrier[0], which then was forked into input-leap[1]. Both open source. [0] https://github.com/debauchee/barrier. - Source: Hacker News / over 2 years ago
Synergy - Cross-platform software for sharing your mouse and keyboard between multiple computers
Input Director - Control multiple windows systems with one keyboard/mouse. Share a keyboard and mouse across multiple windows system.
Ultramon - UltraMon is a piece of software built to help with the management of multiple screens on the same computer system. Without software like this, taking full advantage of an expanded desktop space can be difficult.
DisplayFusion - DisplayFusion will make your multi-monitor life much easier.
Input Leap - Open-source KVM software.
Actual Multiple Monitors - Actual Multiple Monitors is a software utility which offers the comprehensive solution to improve the functionality of Windows user interface for comfortable and effective work with multi-monitor configurations.