Lattice9
Privacy policy
Mampi Technologies Ltd
Company No. 17484970
25 October 2026
No personal data
Lattice9 collects no personal data. There is no account, no sign-in, no analytics, no advertising and no tracking. Mampi Technologies Ltd never receives your vaults, your files, your file names, your passwords or your recovery keys.
Lattice9 does not use the internet
The Lattice9 app never connects to the internet. On Android, the app does not have the internet permission, so Android itself stops it from going online. On Windows and Linux, the program has no network code. Nothing you put in a vault is sent anywhere by Lattice9.
If you choose to keep a vault in a folder that a cloud service syncs (for example OneDrive, Google Drive, Dropbox or iCloud), that service will store an encrypted copy of the vault. Lattice9 warns you when it can tell a folder is synced. The vault stays encrypted, but that copy is then held by the cloud service under its own terms.
What is stored on your device
| What | What it is | How long it stays |
|---|---|---|
| Your vaults | Encrypted vault folders, in the place you choose. On Android, inside the app's own private folder. | Until you delete them. |
| Recent vault folders | The folder locations of vaults you opened, so you can find them again. Not file names, and nothing inside a vault. You can turn this off in Settings. | Until you turn it off, clear the list, or uninstall. |
| Settings | Choices such as how many idle minutes before the vault locks. | Until you change them, or uninstall. |
| Fingerprint unlock (Android only, optional, off by default) | A protected copy of that vault's key, locked by the phone's secure hardware, kept in the app's private storage, never inside the vault folder. It can only be used after your fingerprint is accepted by the phone. | Until you turn it off, change the password, use the recovery key, re-encrypt, add a new fingerprint to the phone, or uninstall. |
Lattice9 does not keep unencrypted copies of your files. When you extract a file, it is written only to the folder you choose.
Permissions on Android
- Fingerprint (USE_BIOMETRIC): only used if you turn on fingerprint unlock.
- No storage permission: files are added and extracted only through Android's own file picker, and only the files or folder you choose.
- No internet, camera, microphone, contacts or location permission.
Screenshots, screen recording and the recent-apps preview are blocked inside Lattice9 so your files are not captured by accident. Phone backup and phone-to-phone transfer are turned off for the app.
Buying Lattice9
Lattice9 is sold through Gumroad (Windows and Linux) and Google Play (Android). They handle payment and tax under their own privacy policies. When you buy through Gumroad, Gumroad shares your email address and order details with Mampi Technologies Ltd so we can provide support and updates. When you buy through Google Play, Google shares order details with us as described in Google's policies. We use these only for the purchase, support and the law, and we do not sell or share them.
Children
Lattice9 is meant for adults. It does not knowingly collect any information from anyone, including children.
Contact
Mampi Technologies Ltd is responsible for Lattice9. If you have any question about privacy, email support@mampitech.com.
Mampi Technologies Ltd
Company No. 17484970, registered in England and Wales
Email: support@mampitech.com
Website: mampitech.com/lattice9
This policy was last updated on 25 October 2026.