Last updated: June 30, 2026
App: Oxide (com.silicasites.oxide) · Operator: Silica Sites
Fitness and nutrition tracking for gym members. This policy covers account, health, gym, device data, and Oxide⁺ subscriptions.
Oxide is a fitness and nutrition app for gym members. This policy describes what data we collect, why, how it is stored, and your choices.
The core app is free. Oxide⁺ is an optional personal subscription that unlocks additional features. Oxide⁺ is billed through Google Play (on Android) and is separate from any membership or coaching fees you may pay your gym.
| Category | Examples | Purpose |
|---|---|---|
| Account | Email, name, user ID | Sign-in, gym membership, profile |
| Health & fitness | Workouts, food logs, weight, steps, plans | Core app features |
| Gym context | Gym code, gym ID, role | Tie your account to your gym |
| Device / app | Local preferences, notification settings | Offline use, reminders |
| Oxide⁺ subscription | Product plan (monthly/yearly), subscription status, renewal/expiry date, Google Play purchase token, obfuscated Play account ID | Verify and maintain your Oxide⁺ access |
We do not sell your personal data.
We do not collect or store your payment card or bank account details. Google Play processes payments when you subscribe to Oxide⁺.
If you choose Oxide⁺:
You can cancel Oxide⁺ anytime in Google Play subscription settings: https://play.google.com/store/account/subscriptions?package=com.silicasites.oxide
Canceling stops future charges; you may retain access until the end of the current billing period, as described by Google Play.
Data is sent over HTTPS. Do not share your account password.
| Service | Role |
|---|---|
| Supabase | Authentication, cloud database, subscription verification |
| Google Play | Oxide⁺ payment processing and subscription management (Android) |
| Open Food Facts | Optional food product lookup (search queries) |
| Exercise / workout APIs | Exercise metadata (as configured by your gym) |
Third parties process data only as needed to provide these features. Review Google's Privacy Policy for Play Billing. Review other providers' policies if you use linked services.
The app may request:
You can deny permissions in system settings; some features may not work.
If your gym uses Oxide with coaching features, coaches at your gym may see fitness and nutrition data you log, consistent with your gym's practices. Ask your gym for their privacy practices.
Oxide⁺ does not change what your gym or coaches can see; it adds personal power-user features on your account.
Oxide is not directed at children under 13. We do not knowingly collect data from children.
Data may be processed in regions where our hosting providers operate. By using the app you consent to transfer as allowed by applicable law.
We may update this policy. The “Last updated” date will change. Continued use after changes means you accept the updated policy.