Systo · Last updated: September 29, 2026
Systo is a blood pressure logbook. We built it so your health numbers stay under your control.
If you use “Scan”, the photo of your monitor’s display is read on your device and is not stored or uploaded.
Only if you turn it on, Systo writes your readings to Apple Health and reads blood pressure readings from it. Health data is never used for advertising or shared with third parties.
Payments are processed by Apple. We use Adapty to check whether you have an active Systo Pro subscription; it receives an anonymous app user ID and your purchase status, not your health data.
Delete readings in the app, or delete the app. To remove iCloud data, go to Settings › [your name] › iCloud › Manage Storage › Systo.