Legal document · Android app
WTI Privacy Policy
This app keeps your inventory and photos encrypted on your own device. There's no server, no account, and no one but you has access to that information.
In short
- Everything stays on your phone. WTI has no server and doesn't send information over the internet.
- Your data is encrypted. Inventory and photos are protected with AES-256 encryption.
- No ads, no tracking. Zero analytics, zero advertising, zero third-party SDKs.
- You control backups. They're only shared if you manually choose to export them.
Who's responsible for this app
WTI is a personal inventory app developed by Marco Antonio Velasco Plascencia as an independent developer. This policy describes what information the WTI Android app uses, how it's stored, and who it's shared with (spoiler: no one).
What information the app uses
WTI works as a digital notebook for organizing boxes, items, and locations around your home or business. To do that, it processes the following entirely on your device:
- Inventory data you type in by hand: item names, boxes, locations, descriptions, models, and dates.
- Photos you take with the device camera or pick from your gallery to identify boxes and items.
- Login credentials you set up when configuring the app (username, password, and encryption key), used only to open the app.
- Biometric verification (fingerprint or face), if you choose to enable it as a login shortcut.
WTI doesn't ask for an email address, phone number, GPS location, or any data to create an account, because there's no account to create.
How it's stored and protected
All information lives exclusively in your phone's internal storage:
- Your inventory and photos are encrypted with AES-256 before being written to disk.
- Your username, password, and encryption key are kept in the operating system's secure storage (Android Keystore), the same mechanism banking apps use to protect credentials.
- Biometric verification is handled entirely by your phone's operating system: WTI never receives, processes, or stores your fingerprint or face data.
The app doesn't request internet access permission in its Android configuration. That's not a policy promise — it's a technical restriction baked into the app's own installer.
Device permissions
WTI requests only the permissions it strictly needs to work:
No location, contacts, microphone, SMS, or general storage-access permissions are requested.
Backups
From Settings you can manually export an encrypted backup (.zip) of your inventory and photos. When you do:
- WTI hands that file to Android's native share sheet, so you choose the destination: email, cloud storage, a cable, whatever you prefer.
- WTI's developer never receives a copy of that file at any point; the app has no way to upload it anywhere on its own.
- Restoring a backup is just as manual: you select the file and type the password it was encrypted with.
What we don't do
Deleting your data
You have full, direct control over your information:
- You can delete individual boxes or items at any time from within the app.
- Settings includes an option to fully reset the local database.
- Uninstalling WTI causes Android to automatically delete every file the app created — including the encrypted inventory and photos — because no copy ever existed outside your phone.
Children's privacy
WTI is a general-purpose organizing tool, not directed at children, and doesn't knowingly collect information from anyone under 13.
Changes to this policy
If this policy changes — for example, if a future feature requires network access — the effective date at the top of this document will be updated, and any meaningful change will be announced inside the app itself.
Contact
If you have questions about this policy or how WTI handles data, you can write directly to the developer: