Privacy policy: Vitals Log (working name): Blood Pressure & More

Status: this app is in development and has not been released yet. This policy describes what the app is designed to do, as written in its specification; it will be reviewed again before release.

In short

The app is a log for blood pressure, pulse, weight, glucose, temperature and oxygen saturation. It works on your phone only. It has no account, no advertising, no analytics and no tracking, and it contains no network code. Nothing leaves the phone unless you export it yourself. The app shows reference ranges from a named guideline and does not diagnose.

What is stored on your phone

In a local database inside the app, all of it entered by you or, if you switch it on, read from your phone's health service:

• Readings with the time and time zone offset where they were measured: blood pressure and pulse (with arm, site, position, irregular-beat mark, cuff and a note), and weight, glucose, temperature, oxygen saturation or pulse as plain series with their context.
• Profiles: "Me" and any other local profiles you add, for example a relative whose log you keep on your own phone, with an optional height and an optional personal target from your doctor.
• Your own tags, cuffs, reminders and home measurement programs (the 7-day method), and records of imports.
• Your settings: guideline, units, morning and evening windows, language, theme and app lock options.
• Notifications never contain measured values.

Permissions

• Notifications: asked only when you first switch on a reminder or a home program, after a short explanation.
• Android: exact alarms, asked once after the notification question, so reminders ring on time; boot-completed; fingerprint or biometric for the optional app lock. The release build has no internet permission.
• Apple Health and Health Connect: asked only when you turn on the Health switch. They cover blood pressure, heart rate, weight, height, blood glucose, body temperature and oxygen saturation, so that readings can be written to, and optionally read from, your phone's health service. There is no background delivery and no clinical records. This sync is optional and under your control.
• The app does not use location, camera, Bluetooth or a foreground service.

Backup and export

Backups are encrypted by default. You can export your readings as a PDF or CSV report, import readings from CSV files and, if you choose, from the health service, and undo an import. Files are shared through the system share sheet and you decide where they go.

What the app does not do

No advertising, no analytics, no accounts, no network use, no third-party SDKs besides standard Expo modules and the two health libraries. Planned App Store privacy label: Data Not Collected.

Contact

Questions about privacy: plainapps@tuta.com.