Vialume

Vialume Privacy Policy

Last updated: 19 July 2026

The short version

Vialume stores everything you enter on your device, and nowhere else. There is no account, no cloud sync, no analytics, no advertising, and no crash-reporting SDK in the app. We cannot see your data because it never leaves your phone. The only exception is billing: if you choose to subscribe to Vialume Plus, the purchase itself is processed by Google Play and RevenueCat (see below) — your health records still never leave the device.

What the app stores locally

  • Shots (medication, dose, date/time, optional notes)
  • Weights, protein, water, and side-effect entries
  • Your profile: Active Medication, Shot Day, Journey Start, Starting/Goal Weight, targets, display preferences
  • Your onboarding and disclaimer acknowledgements

All of it lives in a SQLite database inside the app's private storage on your device. Uninstalling the app deletes it (export a backup first if you want to keep it).

What leaves your device

Nothing, by default. The app contains no networking code that transmits your data.

The only ways data can leave the device are actions you initiate:

  • CSV / backup export — writes a file you choose to share or save, via Android's share sheet.
  • Backup import / CSV import — reads a file you pick.
  • Health Connect — if you explicitly grant permission, Vialume reads and writes weight records via Health Connect on your device, and reads step counts — that is all it looks for from other health apps. Granting access is optional and revocable anytime in Android settings. Vialume does not transmit Health Connect data anywhere.
  • Vialume Plus purchases (optional) — if you subscribe, the transaction is handled by Google Play Billing and validated by RevenueCat, our purchase processor. RevenueCat receives the purchase token and a random anonymous identifier — no name, no email, no account, and none of your health records. It exists solely so your subscription survives reinstalls ("Restore purchases") and is not used for advertising or tracking. If you never subscribe, no purchase data exists at all.

Permissions the app requests

  • Notifications — to remind you about Shot Days. Scheduled entirely on-device.
  • Health Connect (optional) — weight read/write, step counts read-only, only after you grant it.
  • Biometric lock (optional) — authentication happens on-device; no biometric data is accessible to the app or leaves it.

Children

Vialume is a tracking tool for adults managing prescribed medication. It is not directed at children.

Medical disclaimer

Vialume is a tracking tool, not a medical device. It does not provide medical advice, diagnosis, or treatment, and never computes medication recommendations. Always consult a qualified medical professional about your medication and health decisions.

Changes

Any future feature that changes this picture (for example an optional paid sync service) would come with an updated policy and an explicit opt-in. Your local data would never be uploaded silently.

Contact

Questions: support@parktechsystems.com