The fitness app market runs on data. Workout logs, body metrics, rehab progress, training videos — the average fitness app treats all of it as a product. It feeds into ad networks, behavioural analytics, and sometimes gets sold to data brokers outright.
Mobile Squad apps work the other way around. The design principle is simple: your data is yours, it stays on your device, and we don't touch it. This isn't a policy we wrote to meet a compliance checkbox — it's how the apps were built from the first commit.
What we don't do (and never have)
No accounts required
Every Mobile Squad app opens and runs without an email address, username, or password. There is no sign-up flow.
No behavioural analytics inside the app
No Firebase Analytics, no Mixpanel, no Amplitude, no Segment inside the app. We don't track which screens you open, how long you spend on a set, or what exercises you pick.
No advertising identifiers
No GAID (Google Advertising ID), no IDFA, no ad network SDKs. Our apps don't request or use ad tracking identifiers.
No data sold or shared
We have never sold, shared, or licensed user data to any third party. We don't have a data pipeline to share from.
No cloud-first data storage
Workout logs, rehab session history, saved videos, and personal records live on your device's local storage. They are never sent to our servers by default.
No health data profiling
Rehab progress (Tennis Elbow Oracle, Golf Elbow Oracle) and training performance (Personal Trainer) are stored locally only. We cannot access, read, or profile your health data.
What we do
On-device storage, always
All app data — training logs, rehab history, videos, settings — is written to your device's local storage using standard Android and iOS APIs. It goes nowhere else unless you explicitly choose to back it up.
Optional encrypted cloud backup (Personal Trainer)
Personal Trainer has an opt-in encrypted backup feature. If you enable it, data is encrypted on-device before upload, meaning we cannot read the contents. You can use the app for its entire lifetime without ever enabling this feature.
Crash reporting (anonymised, opt-out available)
We use anonymised crash reports (no user identifiers, no PII) to fix bugs. Reports contain only stack traces and device model/OS version. You can opt out in app settings.
Play Store / App Store purchase verification
For pay-once unlock verification, apps communicate with Google Play or the App Store to confirm a valid purchase. This is handled by Google/Apple's standard purchase APIs; we don't receive or store your payment details.
Full offline operation
Every core feature in every app — logging sets, following a rehab protocol, replaying video, monitoring Firebase — works with no internet connection.
Per-app breakdown
Personal Trainer — offline gym tracker
Training plans, set logs, personal records, and progressive overload data are stored locally on your device. No account is required. The friends training mode uses a local invite (no user profile, no leaderboard server). Optional encrypted cloud sync is strictly opt-in. No analytics SDK is present in the app bundle.
Tennis Elbow Oracle & Golf Elbow Oracle — rehab coaches
These apps record sensitive health-adjacent data: pain calibration scores, exercise completion, and recovery progression. Every data point is stored locally. Nothing is transmitted to Mobile Squad. The apps do not connect to any health data network or aggregator. They are educational and self-management tools, not medical devices.
ReplayR — sideline replay camera
Video is recorded to your device's local storage only. There is no upload, no cloud, no sharing feature that routes through our infrastructure. Clips are yours, on your phone, full stop. No account required.
Firepulse — Firebase monitoring
Firepulse displays your own Firebase project's data to you. It reads from Google's APIs using credentials you provide and displays the results on your screen. Your Firebase data stays within your own Google account; Mobile Squad does not store, cache, or transmit your Firebase metrics.
Why we built it this way
Privacy-first is not a feature we added — it's the default we've never deviated from. The reasoning is straightforward:
- Health data is sensitive. Rehab progress, training loads, body metrics, and video of you exercising are personal. They don't belong in an ad auction.
- Offline is more reliable. An app that doesn't need the internet to function can't be broken by server outages, API deprecations, or account bans. It works in dead zones, on planes, in basements.
- Pay-once respects users. A subscription model incentivises retention at all costs — including making apps addictive, locking data, and selling insights. A one-time unlock removes that incentive entirely.
- We are one developer. Running data infrastructure, protecting PII at scale, and managing compliance across jurisdictions is a full engineering team's job. Not collecting the data is simpler, cheaper, and better for users.
Formal privacy policies
Each app has a full legal privacy policy linked from its Play Store / App Store listing. These policies are the authoritative documents for legal purposes:
- Personal Trainer privacy policy
- Tennis Elbow Oracle privacy policy
- Golf Elbow Oracle privacy policy
- ReplayR privacy policy
- Firepulse privacy policy
FAQ
Do Mobile Squad fitness apps collect personal data?
No. Personal Trainer, Tennis Elbow Oracle, Golf Elbow Oracle, and ReplayR collect no personal data. Your data is stored only on your device. No analytics events, no behavioural telemetry, no advertising identifiers are used inside these apps.
Do I need an account to use Mobile Squad apps?
No account is required for any Mobile Squad app. Install, open, train. The optional encrypted cloud backup in Personal Trainer is opt-in; you can use the app indefinitely without enabling it.
Do Mobile Squad apps work offline?
Yes — they are designed as offline-first apps. All core features run on-device. An internet connection is never required for the app to function.
Are Mobile Squad apps GDPR compliant?
Yes. Because we collect no personal data, GDPR's data subject rights (access, erasure, portability) are trivially met: your data is on your device, under your control, and you can delete it by uninstalling the app. We have no data to hand over, because we don't hold any.
How do I contact Mobile Squad about privacy?
Email privacy@mobile-squad.com. For bug reports and feature requests use the in-app feedback link or the Play Store / App Store listing.