Privacy at stay.
stay. is a companion for someone in cancer treatment. It holds what the clinic said, counts the days, and names when to call. This policy is short because the app does very little with your information: everything you type stays on your phone.
The short version
- No account. No sign-in. No server of ours holds your record.
- No analytics, no advertising, no tracking, no third-party data SDKs.
- Nothing you enter is sent to us or to anyone else.
- Deleting the app deletes your record. Export a copy first if you want a file. Restore — putting that file back into the app — is not shipped yet.
What the app stores, and where
Everything below lives only in the app's private storage on your device:
- Your plan — the treatment regimen and dates you enter.
- Your log — nights, symptoms, medicines, food, drink, activity, mood, and journal entries you record.
- Papers — documents you lock in the app's vault, encrypted on the device with AES-256-GCM. The passphrase never leaves the phone.
- Visits and preferences — appointments you save and the settings you choose.
Health data (Apple Health)
If you allow it, the app reads how long you slept and how much you moved, so you do not have to type those in. It never writes to Apple Health, and the readings never leave your phone. You can revoke this at any time in the Health app.
Camera and photo library
If you choose, the app can read medicine names off a photograph of your discharge summary. The photograph is processed on your phone by on-device text recognition. It is not uploaded, stored, or sent anywhere.
Notifications
Reminders are scheduled and delivered entirely on your device. No notification passes through a server of ours.
When you choose to share
The only way information leaves the phone is when you do it: the Keep a copy export and the standard iOS share sheet hand the file to whatever you pick — mail, messages, a drive. That choice, and what happens after, is yours. The file is an export. The app cannot read one back in yet.
Deleting your information
Because nothing is held anywhere else, deleting the app deletes your whole record. If you want a file, use Caregiver → Holding this phone → Keep a copy first. That file protects against a lost phone; it is not a restore.
Children
stay. is written for adults in treatment and their caregivers. It is not directed at children under 13, and it collects nothing from anyone.
Changes
If a future version of stay. changes any of this — for example, if an optional backup service is ever offered — this page will be updated before that version ships, and the change will be described here in plain language.
Contact
Questions about privacy: privacy@staycompanion.app