Privacy Policy
Last updated 18 July 2026
AcheNest is built so your health information stays with you. There is no account, no server, no sync, and no analytics. The app does not collect your data because there is nowhere for it to go.
Summary: Your logs, voice, and settings stay on your device, encrypted at rest. Nothing is uploaded. Data leaves only when you explicitly export or share it.
What we collect
Nothing. AcheNest has no user accounts and talks to no server we run. We do not collect, receive, store, or have any access to your entries, your voice, your device identifiers, or usage analytics. We hold no copy of your record.
Where your information lives
- On your device only. Every log, reminder, check-in, and preference is written to local storage on your phone.
- Encrypted at rest. The record is stored in an encrypted database. The key is held in the platform keychain (iOS) or keystore (Android), not in the database it protects.
- Optional app lock. You can require Face ID, fingerprint, or your device passcode before the app opens.
Voice stays on the device
When you speak a log, speech is transcribed using on-device recognition only. Audio is never sent to a server. If a device has no on-device recogniser available, the voice feature stays disabled rather than routing your voice anywhere else. The transcript is turned into a draft entry by a local interpreter with no AI model and no network access.
When information leaves the device
Data only ever leaves your device when you choose to send it. There are two ways out, and each one takes a deliberate action from you:
- Doctor report (PDF). Built on your device, offline, then handed to your operating system share or print sheet so you can send it wherever you like. If you add a name for the report, it appears only inside that PDF.
- Encrypted backup. You can seal your whole record under a passphrase you choose and save the encrypted file wherever you want. The passphrase is never stored and cannot be recovered by us. Only you can open the file.
In both cases AcheNest does not record where the file goes, and we receive nothing. What you do with an exported file is governed by the privacy terms of wherever you send it.
No tracking or advertising
AcheNest contains no analytics SDKs, no advertising, no third-party trackers, and no crash reporting that includes your log content. We do not build a profile of you and there is no identifier tied to your record.
Data retention and deletion
Because the record is only on your device, you control its lifetime. Delete individual entries in the app, or remove the app to remove the record. On Android, uninstalling the app destroys the record, since the encryption key does not survive reinstall and the database is excluded from cloud backup. Keep an encrypted backup if you want a copy that survives a reinstall or a new phone.
Children
AcheNest is intended for use by adults tracking their own symptoms. It is not directed at children, and we collect nothing from anyone who uses it.
Changes to this policy
If the app ever changes in a way that affects this policy, we will update this page and revise the date above. Material changes will be reflected here before they take effect.
Contact
Questions about privacy? Email [email protected]. AcheNest is published by Jerome Coloma.