Medical information that stays on your device
Medical details matter most in exactly the situation where you cannot recite them. The app keeps a short card — blood type, allergies, medications, conditions, organ donor status — that gets attached to the SMS your SOS sends.
This information never leaves your device except in a message that you triggered, addressed to contacts that you chose. There is no account and no server copy.
Stored in the app’s local storage on your phone. Reading and editing it never touches a network.
Why it matters
Attached where it is useful
When SOS sends, your medical details travel with your coordinates, so the people responding have them without needing to ask.
Device-local by design
The card is written to the app’s own storage on your phone. The app has no backend, so there is nowhere for it to be uploaded to.
Yours to clear
Clearing the app’s data through Android settings removes it completely. No deletion request, no account to close.
What it does, precisely
- Blood type, allergies, current medications and medical conditions
- Organ donor status
- Included automatically in SOS alert messages
- Stored in the app’s local storage on the device
- Removable at any time by clearing the app’s data
Permissions
Requested when you first use the feature — never at install.
- No permission required
- Entering and storing medical information needs no Android permission. It is only transmitted as part of an SMS you trigger, which uses the SMS permission.
Limits
Stated plainly so you know what this feature does not do — not just what it does.
- Stored locally without additional application-level encryption — on a locked device, Android’s file-based encryption protects it at rest.
- Attached to SOS messages only when you trigger SOS.
Answers
Medical information: common questions
Is my medical information stored online?
No. It is written to the app’s local storage on your phone. The app does not operate a backend server for user data, so there is nowhere for this to be uploaded. It leaves your device only inside an SOS message you triggered.
Is the medical information encrypted?
It is stored in the app’s private storage area, which Android isolates from other apps. It is not additionally encrypted at the application level — on a device with a screen lock, Android’s own file-based encryption protects it at rest. Stronger app-level encryption is on the roadmap rather than shipped, and we would rather say so than imply otherwise.
Who sees my medical details?
Only the emergency contacts you chose, and only when an SOS you activated sends them. Nobody else, including the developer, has access.
Related features
- SOS alertsA deliberate three-second countdown, then an SMS with your coordinates, a siren, and a location log.
- Emergency contactsSave up to five contacts from your address book. They receive your SOS alerts and your all-clear.
- First aid guideEight common emergency procedures, stored in the app and readable with no connection.
- For familiesMedical details for each person, contacts that actually get reached, and a check-in that takes one tap.
- For travellersThe local emergency number, your medical details and a downloaded map — before you need any of them.
Related guides
- What information should you give your emergency contacts?Naming someone as your emergency contact does almost nothing on its own. The value comes from a conversation most people never have.
- Emergency preparedness checklist for travellersTravel removes the things you normally rely on without noticing: knowing the emergency number, reading the signs, having a working data plan.
Get medical information and 10 more tools
Free on Google Play. No account, no subscription, and the core tools keep working when the signal does not.
- 4.8 MB download
- Android 8.0+
- No account required