Sundae — Privacy Policy

Updated August 19, 2026

Sundae collects nothing about you. That's not marketing copy — the app literally has no networking capability, so it couldn't phone home even if it wanted to.

What we collect

Nothing. No account, no sign-up, no email, no identifiers of any kind.

Where your data lives

Your focus history, collection, and streaks are stored only on your device. They never pass through our servers, because we don't have servers.

Third parties

No analytics, ads, or push SDKs. None of the tracking code you see elsewhere exists in this app.

Purchases

The one-time purchase "Sundae Full" is processed entirely by Apple through the App Store. We never see your payment details. Purchase state is verified on-device using Apple's StoreKit receipts.

Permissions

Background audio keeps the ambience playing when the screen is off. The Live Activity on your Lock Screen shows only your own timer. Both run entirely on your device.

How to delete

"Clear all history" in Settings erases everything immediately. Deleting the app does the same. There is no copy on our side to delete.

Children

Because nothing is collected, nothing is collected from anyone under 13 either.

If this ever changes

If a future version adds any online feature, we will update this policy first and say so clearly inside the app — never collect first and announce later.

Contact

xufei547@gmail.com