We don’t collect anything.

Last updated: 24 April 2026.

VitaSine is built around a simple promise: nothing you log leaves your device. This page explains what that means in practice.

Short version: No accounts. No tracking. No analytics. No servers. No advertising. No third-party SDKs. No data is ever transmitted, sold, shared, or accessed by us.

Data we collect

None. VitaSine does not collect, transmit, or store any personal information on any server controlled by Tarsoul AB or any third party.

Data you create

The information you enter — names, birth dates, self-reports, preferences, and the fitted curves the app derives from them — is stored on your device using Apple’s SwiftData (locally on the iPhone or iPad you installed the app on). It is not synced to the cloud unless you explicitly export it yourself (for example, by tapping the share button on the journal screen and choosing where to send the resulting CSV file).

Network access

The app makes no network requests. It does not contact our servers, Apple’s servers, or any third party. You can verify this by toggling Airplane Mode — VitaSine works identically online or offline.

Apple Health integration

The current version does not read from or write to Apple Health. We are considering an opt-in integration in a future release, where you would be able to mirror emotional self-reports to Apple Health’s State of Mind feature, and optionally read existing State of Mind entries back. If we ship this, it will require your explicit permission via the standard iOS HealthKit prompt and will be controlled by a setting you can disable at any time.

Crash reports and analytics

VitaSine does not include a crash reporter, analytics SDK, or telemetry of any kind. If iOS itself prompts you to “Share with App Developers” at the system level, that data goes to Apple — we have no way to opt in or out on your behalf, and we do not receive personally identifying information through that channel.

Children

VitaSine is rated 4+ and contains no advertising, in-app purchases, or social features. Because we collect nothing, we cannot collect anything from a child either. The app contains a disclaimer reminding all users that biorhythms are a reflective journaling concept, not medical or safety advice.

Your control over your data

You can:

Edit or delete any person, report, or preference at any time inside the app.
Export your journal as a CSV file from the journal screen.
Wipe everything by tapping Settings → Reset all data.
Remove all data by uninstalling the app — iOS deletes the app sandbox automatically.

Changes to this policy

If we ever change how the app handles data — for example, when we add the optional Apple Health integration — this page will be updated and the change will be summarised in the App Store “What’s New” notes for the release.

Contact

Questions about this policy? Write to info@tarsoul.se.