Stay Fit vs GymMane: Privacy-Focused Android Loggers
Stay Fit Team··6 min readGymMane is open source and doesn't request network permissions at all. Stay Fit trades that code-level guarantee for a broader feature set. Here's the honest trade-off.
GymMane doesn't request the Android INTERNET permission at all, which makes its no-network claim verifiable in code rather than just a policy statement. Stay Fit is offline-first by design and trades that code-level guarantee for a broader feature set — goals, streaks, muscle-balance insights, and body measurements GymMane doesn't attempt.
GymMane and Stay Fit both land in the "privacy-first, free-forever" category, but they get there from different starting points. GymMane is open source and built around a single, structural privacy guarantee. Stay Fit is closed source but offline-first, with a much wider feature surface. Both claims are legitimate — they're just different kinds of claims.
The core difference: verifiable vs architectural privacy
GymMane doesn't request the INTERNET permission in its Android manifest at all. That's a stronger and more specific claim than "we don't send your data anywhere" — it means there's no network layer in the app for data to travel through, full stop, and it's checkable by anyone who reads the manifest or the open-source code itself.
Stay Fit's offline-first design means core logging, measurements, and photos never require a connection and aren't routed through a server by default. That's a real architecture decision, not a marketing claim, but because Stay Fit is closed source, verifying it requires trusting the stated design rather than reading the code yourself the way you could with GymMane.
| Feature | Stay Fit | GymMane |
|---|---|---|
| Price | Free, no tier above it | Free, open source |
| Privacy guarantee | Offline-first architecture | No INTERNET permission requested |
| Source code | Closed | Open (GPL-licensed) |
| Exercise database | Curated, standard movements | 360+ exercises |
| Built-in calculators | No | 6 |
| Workout streak | Yes, with rest/freeze states | No |
| Body measurements | 9 types | No |
| Muscle-balance insights | Yes | No |
| Goal tracking | Yes | No |
| Account required | No | No |
Where GymMane's approach wins
If a verifiable, code-level guarantee matters more to you than feature breadth — for instance, if you specifically don't trust closed-source apps' privacy claims regardless of how they're worded — GymMane's missing INTERNET permission is a stronger and more concrete assurance than any policy page. Its 6 built-in calculators and 360+ exercise database also cover genuine utility beyond basic logging.
Where Stay Fit's feature set wins
GymMane doesn't attempt goals, streaks, muscle-balance insights, or body measurement tracking — it's focused on logging and calculation tools specifically. Stay Fit covers the same core logging and extends into all of those areas, still without an account or a paywall, for users who want more than a verifiable-but-narrower feature set.
Checking GymMane's maintenance status
Open-source projects vary widely in how actively they're maintained, in ways a Play Store listing doesn't surface. If you're considering GymMane, checking its GitHub repository directly for recent commit activity is worth doing before relying on it as your primary tracker long-term.
Choose GymMane if a code-verifiable no-network guarantee is the deciding factor and you're comfortable with a narrower feature set. Choose Stay Fit if you want offline-first logging plus goals, streaks, and muscle-balance tracking, and you're comfortable trusting a stated architecture rather than reading the source yourself.
Frequently asked questions
Is GymMane more private than Stay Fit?+
GymMane's privacy claim is verifiable in code — it doesn't request the Android INTERNET permission at all. Stay Fit is offline-first by design, but that's an architecture claim, not a permission-level guarantee you can independently verify without reading the code.
Which has more tracking features?+
Stay Fit — goals, a streak with rest/freeze states, muscle-balance insights, body measurements, and progress photos, none of which GymMane focuses on.
Is GymMane actively maintained?+
Check its GitHub repository directly for recent commits before relying on it long-term. Open-source projects vary in maintenance pace in ways a Play Store listing doesn't show.
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