Privacy Policy
Last updated: August 22, 2026
The short version
Vallumn does not collect, transmit or store your personal information. There is no account to create, no server to talk to and no analytics or crash-reporting service in the app. Everything Vallumn knows stays on your iPhone.
Information we collect
None. Vallumn has no backend. It makes no network requests of its own, so there is no point at which your data could leave the device.
In App Store Connect terms, Vallumn is declared as Data Not Collected.
What is stored on your device
To do its job, Vallumn saves the following in a private container on your iPhone, shared only with its own Screen Time extensions:
- —The rules, schedules, daily limits and sessions you set up, including their names and times.
- —Your settings — strictness tier, wait lengths, unblock length, Emergency Pass allowance, Extreme mode state.
- —Your app selections, as opaque tokens issued by Apple. See below.
- —A short rolling log of the app’s own actions, used for diagnosing problems. It holds no app names, no selections and no usage figures, and it never leaves the device.
Deleting Vallumn deletes all of it. There is no copy anywhere else.
Your app selections are private from us too
When you pick apps to block, iOS shows you Apple’s own picker, not ours. What it hands back is an opaque token — Vallumn can ask iOS to shield that selection, but it cannot read which apps are in it. This is enforced by iOS, not by our good manners.
Those tokens are tied to a single device and are meaningless anywhere else, which is also why app selections cannot sync between your devices.
Screen Time permission
Vallumn asks for Screen Time (Family Controls) permission on first launch. Nothing can be blocked without it. The permission lets the app shield apps you have selected and schedule those shields; it does not send anything to Apple or to us beyond what iOS does on its own.
You can revoke it at any time in the iOS Settings app, under Screen Time.
Usage statistics
The Stats tab shows figures drawn by Apple’s own report view, which iOS renders inside a sandbox that Vallumn cannot read from. Your usage data is displayed to you without ever entering the app’s own process, and Apple’s terms for that API forbid extracting it.
Third parties
There are none. Vallumn contains no advertising, no analytics SDK, no crash reporter and no third-party service of any kind. Nothing about you is sold or shared, because nothing about you is collected.
Children
Vallumn is not directed at children under 13 and collects no information from anyone, of any age.
Changes to this policy
If a future version of Vallumn ever collects anything, this policy will be updated before that version ships, and the change will be described here rather than quietly absorbed. The date at the top is the last time anything changed.
Contact
Questions about this policy can go to hexistrain@proton.me.