StressReceipt

This is the same document that ships inside the StressReceipt app, word for word.

Privacy Policy

Short version: StressReceipt reads your Apple Health and calendar data read-only, works everything out on this iPhone, and sends none of it to us. There is no account and no server.

What the app reads

  • Apple Health (HealthKit), read-only: heart rate, resting heart rate, heart rate variability (HRV), step count, sleep and workouts. StressReceipt never writes anything to Health.
  • Calendar, read-only: the start and end times and the titles of your events, so each hour can be lined up with what you were doing.

You grant both in the system permission sheets and can take either back at any time.

How it is used

The strain index is worked out on this iPhone, against your own baseline. The app never uploads, shares or sells Health data, and never uses it for advertising; it only leaves this iPhone in files you export yourself. There is no account or sign-in, no server of ours, no third-party SDK, no analytics, no advertising identifier and no tracking. Download and sales numbers come from App Store Connect, not from the app.

Event titles

Event titles are shown only on this device. Images you export or share are masked by default; names appear on an export only when you turn on “Show event names” yourself.

Encrypted backup file (Pro, optional)

Nothing leaves this iPhone unless you export it yourself, as a backup file or an image. With Pro you can tap Export backup in Settings: your receipts (with the event titles on them), stamps, settings and single-receipt unlock records are encrypted on this iPhone with a passphrase you set (AES-GCM-256, key derived with PBKDF2-SHA256) before the file is written. Raw Health samples are never part of the backup. You choose where the backup file is saved. The app never uploads it and writes nothing automatically, and we have no copy. If you lose the passphrase, the file cannot be opened and we cannot recover it.

Purchases

Payments are handled entirely by Apple; we never see your payment details. If you buy a single receipt, a small record of which week you unlocked is kept in your iCloud key-value storage so it survives a reinstall.

Notifications

One local notification, created on this iPhone: the Sunday receipt at 6 PM. You can turn it off in Settings.

Deleting your data

  • Stop access: iPhone Settings → Health → Data Access & Devices → StressReceipt, and Settings → Privacy & Security → Calendars.
  • Delete everything on the phone: delete the app.
  • Delete backups: delete the backup files you exported, wherever you saved them. We hold no copy.

Not medical advice

StressReceipt is not a medical device and does not give medical advice. The index is an estimate from your Watch data. If you are worried about your health, talk to a doctor.

Changes

If this policy changes, the new version ships inside the app and is published at https://stressreceipt.app.topxup.com/privacy/.

Questions: Fuuqiu (X @Fuuqius) · Fuuqiu@gmail.com