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openGym

Open-source alternative to Strong, Hevy, MyFitnessPal

openGym is an open-source alternative to Strong, Hevy, and MyFitnessPal. It is a gym tracker focused on workout logging and progression, including body-weight tracking. It runs on web, Android, and iOS, with self-hosted sync so your training data stays with you.

Best for: Lifters logging workouts and tracking strength progression.

Key features

  • Workout logging with progression tracking
  • Body-weight tracking alongside training
  • Self-hosted sync across web and mobile

Before you switch

Fitness apps are personal — the best one is the one you’ll actually open. Check whether the app exports your data in standard formats so you’re never locked in. Self-hosted or offline-first options keep your health data private, which matters more than most people think.

Like every project on OpenShelf, openGym is developed in the open — you can read the code, follow development, and even contribute. Check the system requirements and the project’s own documentation linked on this page before installing.