FitNotes

Developer Duarte Santos released openGym, a free, self-hosted gym and body-weight tracking app built in JavaScript. Users can plan routines, log supersets, warm-ups and cardio, and see which muscles are trained, fatigued or detraining. It imports data from FitNotes, Strong and Hevy and supports passkey login, with all data stored on the user's own server. It is climbing trending charts as fitness app users look for private alternatives to subscription services.