openGym APK for Android v1.3.10

openGym is an open-source, self-hosted fitness and body-weight tracker designed for people who want complete control over their workout data. Instead of storing training history on a third-party service, it runs on your own server and keeps your data in files you control.

The application combines workout planning, guided training, body-weight tracking, statistics, muscle analysis, and cross-device synchronization in a web application that can also be installed as a Progressive Web App.

Features

openGym provides a weekly workout planner with routines organized by day. Users can create and modify training sessions, move workouts between days, and choose from predefined workout plans such as Push/Pull/Legs, Upper/Lower, Full Body, and 5×5.

The exercise library contains more than 1,300 exercises with animated demonstrations. Exercises can be searched, browsed by muscle group, and filtered according to available equipment.

During workouts, the application supports regular sets, supersets, warm-ups, cardio, rest timers, and exercise tracking. It records training history and provides statistics including personal records and progress charts.

Muscle analysis is another notable feature. openGym can show which muscles are being trained, fatigued, or detrained, helping users understand how their training volume is distributed over time.

The application can import workout history from services and applications including FitNotes, Strong, and Hevy. This makes switching to a self-hosted system considerably easier for existing users.

Authentication uses passkeys, while the application can operate offline and synchronize data when connectivity returns. The synchronization system uses revisions to prevent one device from silently overwriting changes made by another device.

Download openGym APK v1.3.10 - Software Mirrors
openGym APK v1.3.10 for Android openGym-1.3.10.apk | 15.71 MB
openGym APK v1.3.10 Source Code openGym APK v1.3.10 Source code (zip) openGym APK v1.3.10 Source code (tar.gz)
openGym APK v1.3.10 Release Notes: A new look, a rotation for people who don't train on fixed weekdays, swipe actions, your own accent colour, and a sync that holds on to every rep. Grab the APK below or pull the new images, and then update the app on every device you sync. 🏋️ This one grew. The plan was a queue and a rotation; along the way the whole app got a calmer look, swipe actions arrived, you can pick any accent colour you like, and sync was taken apart and put back together so that no device can quietly lose your training again. Thirty-five community pull requests from twelve contributors, fifteen issues closed, and a long night of testing behind it. Web bundle, APK and API image. Please update the app on every device that syncs (phone, browser tabs, the Android app). An older phone keeps working, but only a fully updated set of devices gets all of the new safety nets. Before you update, open each device once with internet so everything it owes the server has arrived. A new design Settings on one screen, with search at the top, your account on a card, and everything else on sub-pages: Workout, Reminders, Units & language, Data & backup and friends. Nothing was taken away, it just has a home now. Type "rest", "swipe" or "vibrate" and you are there. Plan is two tabs, Schedule and Routines. One switch between a fixed week and a rotation, a menu for export, print, import and starter plans, and the weekly muscle volume moved to Stats. A workout screen that gets out of your way. The tab bar steps aside while you train, a labelled Finish, grouped ⋯ menus, a small thumbnail of the exercise, and the rest timer docked as one row at the bottom. Tap its clock to set the time left. A rest-time wheel, iPhone style, for anything from 0:00 to 15:00, in Settings, in the new in-workout settings sheet and per exercise. Done without scrolling leaves your rest alone. The in-workout settings sheet: rest timer, sound, vibrate, flash, screen awake, layout and effort without leaving the session. Finish opens a small sheet: finish and save, or discard. And any set's menu can turn it into a warm-up set on the spot (or back). One icon per idea. The shuffle icon used to mean twelve different things. Not any more. New profiles start with smaller exercise animations and "weigh in before workouts" off. Your existing profile keeps whatever you had. Rotation and the session queue A rotation beside the fixed week (#158, #69; kurktchiev's #167 and giulioleuci's kurktchiev/openGym#1). A, B, C, A, ...: the next session is the next one you haven't done, whatever the weekday, so a missed Tuesday no longer shoves the plan around. Build the loop in Plan, reorder it, start a new pass whenever you like. Switching back to a fixed week asks first and leaves your weekdays as they were. Home shows what is next, how much of the pass is done, and when the next one starts. A coach app that writes your week through the API is marked "Externally managed". Planned vs completed weekly volume per muscle (EmilZapata, #333, #327), now on Stats, with each queue or rotation session counted once. Swipe actions Swipe a set left to delete it, with Undo, or right to copy it. In cards, list and compact, mirrored in Arabic. The last set stays put ("Keep at least one set, champ"). A timed per-side hold slides its left and right rows together. Swipe in Plan: a routine left to delete (with Undo), right to duplicate; an exercise out of the routine editor or a routine out of the loop, with Undo too. One switch for all of it, "Swipe actions" (Settings → Workout → Fine-tuning, or the in-workout settings sheet), on by default. Your own colour Any accent colour you like, from the rainbow swatch after the presets. openGym checks it against light and dark and nudges it until text on it stays readable. It syncs like the presets. Safer sync, and no more lost data This is the part we are proudest of, and the part you will hopefully never notice. Most of these could already happen in v1.3.9: Every change carries its own stamp, down to a single setting, plan day or routine field. Two devices editing the same routine now merge field by field instead of one copy winning whole. A phone whose clock runs late no longer loses its edits and deletions. A deletion stays deleted, even when another device changes something unrelated afterwards, and the order of your routines survives a conflict. Two tabs in one browser no longer overwrite each other or the running workout, and signing out or switching accounts with a second tab open leaves nothing behind. Signing out during a workout no longer deletes it, and signing in with a guest plan asks first. Anything that does not fit lands under Settings as kept changes, with "Save as a backup file", instead of disappearing. A server that falls back to an older copy (say, from a backup) is merged with, not trusted blindly. A full disk or a slow answer can no longer hand a device an old state. Importing a backup keeps the workout you are in the middle of, whether it replaces or merges. On the server: every write is flushed to disk before openGym says "saved", a copy of the last good db.json is kept as db.json.bak, and the server starts from that copy if the main file is damaged. We killed it eighty times mid-write; every confirmed save was on disk. Reminders and alerts The missed-workout nudge (opt-in): one push on the evening of a planned day you skipped, in the tone you pick: Friendly, Guilt trip or Drill sergeant. It backs off after three missed days in a row and never bothers you on a rest day. Vibrate on silent too (noname-nan, #375), Android: the end of a rest or a hold buzzes like an alarm even when the phone is on silent. Off by default. The rest alarm on Android rings even when the notification permission dialog is still open, and a killed app brings its rest bar and countdown back. "Rest over" rings only the device that rested (kurktchiev, #348). Classic beeps (tomlongfield, #372): the quieter three-beep sound from before 1.3.9 is back as a choice. More in the workout and history Repeat today (Space-Hermes, #58): open a past workout in History and start it again today. Pyramid sets (NtsCiccio, #367, #362): one rep target per set (12 · 8 · 6 · Max), a rest per set, and a "Max reps" chart in Stats. Per side on timed holds (horusglez, #322): left and right each run the full hold, with a 10-second "switch sides" pause in between. Progress photos (horusglez, #361): every photo kept with a workout on one timeline, with a before/after slider. Update routine from the session (FranciscoFavela, #336): copy an exercise's warm-ups, rest and note back into its routine. "Last time" in days, weeks or months (xwr3, #363) instead of a date. Hover for the full one. Pick your own backup folder on Android (#161), for example a sync app's folder. Community pull requests Thank you, all of you. This release is half yours. @kurktchiev: the session queue (#167), × to clear search (#338), the Coach card in the admin (#341), the workout menu's screen-reader label (#343), check-in edits on a removed card (#344), the API under BASE_PATH (#346), rating a superset set scrolls to the partner (#347), "rest over" on one device (#348), imported sessions graded on all sets (#349), hardened importers (#350), Coach messages in your language (#351), Coach consent that names notes (#352), the muscle chip keeps the equipment filter (#353), the plate load kind is kept (#354), MCP tools that answer the question asked (#355) and explain a broken data folder (#356), plus tests and tidying (#337, #339, #340, #342). @giulioleuci: rotation mode, on top of the queue (kurktchiev/openGym#1). @EmilZapata: planned vs completed weekly volume (#333) and zero-credit muscle mappings (#359). @horusglez: per side on timed holds (#322) and progress photos (#361). @NtsCiccio: pyramid sets (#367). @FranciscoFavela: update routine from the session (#336). @dima-po: three-form plurals for Russian (#365), and a steadier media test (#366). @nauish: Traditional Chinese, a whole new language (#368). @tomlongfield: the classic timer sound (#372). @alessandromoretti90: a workout finished hours later ends at its last set (#317). @olivierbbommel: Safari no longer turns 62.5 into 6265.5 (#320), and Finish stops a running plank timer (#321). @tfdmendes: neatly aligned routine cards on desktop (#374). Bug fixes Custom exercises can be edited and deleted again, including older ones and ones from a shared or Coach plan (Teo230, #358; svillar, #378). The up and down arrows move an exercise within a superset, and out of it at the edge (svillar, #377). Strong's current export, the one with semicolons, imports again (davidjorgensen, #394). Pairing the phone app says why it failed: a proxy or CORS rule in the way, a login page answering in openGym's place, or a server that can't be reached (#329). A cardio block or a long hold at the end no longer shortens the workout's duration. 8.5 in a reps field no longer becomes 85, a running plank survives a reload, and the rest timer stops when you sign out. Loading the same starter plan twice no longer doubles your routines; a custom exercise can share a name with a catalogue one; an equipment profile no longer hides imported custom exercises. Plates: a single stack counts each pair properly. Imports refuse impossible dates and numbers (year 9999, negative, 1e308 kg), a Hevy session over midnight keeps its length, a zip's photos upload straight away, and the summary says how many rows it skipped. Workouts dated later today are no longer in the future, durations and body weight have sane limits, and the weight axis never says "-0". Passkey, pairing and import errors speak your language instead of developer English. Polish and Ukrainian plurals are right everywhere (#365), "Drop {0}" means a drop set in every language, and long labels no longer get cut off in Russian, Portuguese, Hungarian or German. Android: status bar icons readable in the light theme, Back works after "All settings" and from the Start menu, and no tab bar on the very first screen. Without an account, nobody can flood the admin log with junk sign-ins or fill the server with pairing codes. For self-hosters FIRST_USER_ADMIN=1 (seals187, #328), opt-in: the first profile on an empty instance becomes its admin. Off by default; if you turn it on, register yourself before you share the address. BASE_PATH (#346): serve openGym under a sub-path such as /gym. The web container checks the value at start-up. Phone app and CORS (#329): a new section in SELF_HOSTING.md on proxies that answer or change the CORS preflight (Traefik headers middleware, a second Access-Control-Allow-Origin, SSO in front of /api/), with a one-line curl check. openGym handles CORS itself, so leave it alone on the openGym route. Show connection status (seals187, #330; xwr3, #369): Settings → Look & Home can hide the sync line at the top. A dot on Home still warns when sync is stuck. Durable writes: every file the API keeps is flushed before it is renamed into place, and ./data/db.json.bak holds a copy of the last good db.json. Back up ./data as before. If you build your own API image from a copy of the Dockerfile: it now also needs queue.js, nudge.js, nudge-copy.js, durable.js and sync-stamps.js. PASSWORD_LOGIN is unchanged and still off by default. build-api-docs --check runs in CI (#342). Known limit while old phones are around The server stamps what a v1.3.9 phone sends, so most things just work. Until every device is updated, though, an old phone can't always say what it has seen: if it sets something back to exactly what it was before, after another device changed it, the other device's change loses. Workouts that v1.3.9 deleted offline and never uploaded may come back once; delete them again and they stay gone. Anything the update had to set aside is under Settings as "This device, before the update". Once everything is on 1.3.10, none of this applies. Languages 🇹🇼 Traditional Chinese (nauish, #368): eighteen languages now. Browsers set to zh-Hant, zh-HK or zh-MO open in it. Every string reworded to sound more human, with fewer long dashes and a bit more fun. Credits Code from @kurktchiev, @giulioleuci, @EmilZapata, @horusglez, @NtsCiccio, @FranciscoFavela, @dima-po, @nauish, @tomlongfield, @alessandromoretti90, @olivierbbommel and @tfdmendes. Bug reports and ideas from @Gitoffomalawn, @Space-Hermes, @seals187, @schklom, @LaDaniWapa, @jdpiqueras1979, @Teo230, @xwr3, @noname-nan, @svillar, @davidjorgensen, @EmilZapata and @NtsCiccio, plus everyone on Discord who told us where it hurt. Thank you! Install Android: download openGym-1.3.10.apk below (or update from inside the app). SHA-256 1527d58866f97a380c555351cbdc0934c341eb4d8fbe034a2ed002f51278cc65, signing certificate 0d22a49e… (unchanged) Docker: git pull && docker compose pull && docker compose up -d Images 1.3.10, 1.3, latest (amd64 + arm64) on registry.gitlab.com/duartesantos8/opengym: api sha256:bb3af45b…, web sha256:15e7c311… Full history: CHANGELOG.md

Performance and Compatibility

openGym is designed primarily as a self-hosted web application, but it also provides an Android application and can be installed as a PWA. The Docker deployment supports both AMD64 and ARM64, making it suitable for conventional servers as well as ARM-based systems.

The deployment architecture is relatively lightweight. The API uses Node.js, while the frontend is served through nginx. User data is stored under the application's data directory, including profiles, workout state, settings, and the session signing key. This makes backups straightforward because backing up the data directory effectively backs up the application data.

Offline functionality is particularly useful for a fitness tracker because workouts can continue even when the phone temporarily loses connectivity. Changes that have not reached the server are retained, and the application indicates when it is operating offline.

There are some important self-hosting considerations. Passkey authentication requires a properly configured HTTPS origin when accessing the application from a phone. The project provides guides for Cloudflare Tunnel, Caddy, Traefik, nginx, LAN HTTPS, and Kubernetes deployments.

The exercise media also deserves attention. The application downloads the exercise images and animations from an upstream dataset rather than redistributing them directly. The repository explicitly notes that the media has separate third-party licensing considerations and should not automatically be treated as covered by openGym's AGPL license.

System Requirements

• Docker with Docker Compose for the recommended self-hosted deployment

• AMD64 or ARM64 system for the provided container images

• Persistent storage for application data and exercise media

• HTTPS and a suitable domain when using passkeys from external devices

• Android device for the native Android application

• Modern web browser for the web/PWA interface

Pros and Cons

Pros

• Open-source and self-hosted

• Your workout data stays under your control

• No subscription

• No advertising

• No required third-party account

• Passkey authentication

• Offline workout support

• Cross-device synchronization

• Progressive Web App support

• Android application

• Extensive exercise library

• Animated exercise demonstrations

• Workout planning and guided sessions

• Supersets, warm-ups, and cardio tracking

• Body-weight tracking

• Muscle fatigue and detraining analysis

• Personal records and statistics

• Imports from FitNotes, Strong, and Hevy

• Docker deployment

• AMD64 and ARM64 container images

• Kubernetes deployment support

Cons

• Self-hosting requires some technical knowledge

• HTTPS configuration is necessary for convenient passkey access from phones

• Users are responsible for server backups and maintenance

• Exercise media has separate third-party licensing considerations

• The project is relatively young compared with established commercial fitness platforms

• Some advanced functionality is still actively evolving

How to Install

The simplest deployment method is Docker Compose.

Clone the repository, create the environment file, pull the prebuilt images, and start the services:

git clone https://github.com/DuarteSantos8/openGym
cd openGym
cp .env.example .env
docker compose pull
docker compose up -d

The application can then be accessed through the configured web port. The first startup downloads the exercise media required by the application.

For access from a phone, configure HTTPS and a domain before relying on passkey authentication. The project documentation provides deployment examples for common reverse proxies and tunnel solutions.

Once installed, create a profile and configure your weekly routine. Existing workout history can also be imported from supported fitness applications.

Final Verdict

openGym is an impressive self-hosted alternative to conventional workout tracking services. Its strongest feature is not simply workout logging, but the combination of data ownership, offline support, passkey authentication, cross-device synchronization, exercise analytics, and a surprisingly complete training workflow.

The Docker-based deployment is particularly attractive for technically inclined users. The application can run on relatively inexpensive hardware, while its data directory makes backup and migration straightforward.

The main drawback is that self-hosting transfers responsibility for availability, HTTPS, backups, and updates to the user. The separate licensing situation surrounding exercise media is another consideration for anyone redistributing an installation.

For users who want a modern fitness tracker without handing their workout history to a third-party service, openGym is an excellent project and one of the more compelling self-hosted fitness applications available.

Free

Download

Software Informations:
Developer:
Duarte Santos
Operating System:
Android
Date Added:
2026-10-07T18:04:06.591Z
Categories:

Related to openGym APK for Android v1.3.10:

Post a Comment/Report Broken Link: