Privacy Policy
Last updated: September 12, 2026 · Applies to the Mewlet iOS app and this website
The short version: we collect nothing. Mewlet has no account, no server and no analytics. There is nothing to sign up for and nothing to delete on our side, because there is no “our side” holding your data.
What Mewlet stores, and where
Mewlet keeps everything in a single file inside your iPhone’s own app storage: your goal, the glasses you logged (up to 60 days), your reminder schedule, and the companion photo and words you chose. It stays on your device.
- No account. Mewlet has no sign-in, no registration and no user profile on any server.
- No network. The app contains no networking code of any kind and makes no network requests. It cannot send your data anywhere.
- No analytics, no advertising, no tracking. Mewlet links no third-party SDKs and collects no usage statistics.
- Backups. If you back up your iPhone (via iCloud or a computer), that backup is handled by Apple under Apple’s own privacy policy — not by us.
Notifications
Reminders are scheduled locally on your device by iOS. Nothing is sent to you from our side, and we never see when notifications are delivered or read.
Companion photos
If you choose a photo for your companion, it is stored only on your device and never uploaded. The Dynamic Island and widgets draw a tiny, simplified copy of it on-device; the original file is never transmitted.
Purchases
Mewlet is a one-time purchase handled entirely by Apple through the App Store. We never see your name, payment details or purchase information.
Children
Mewlet does not collect personal information from anyone — including children under 13 — because it does not collect personal information at all.
A note on health
Mewlet is a reminder helper, not a medical device. It repeats the goal you set for yourself and makes no claim about how much anyone should drink.
Deleting your data
Everything Mewlet knows about you is on your device. Use Delete All Data in the app’s settings to erase it, or simply delete the app — both remove everything. There is no server copy to worry about.
Changes to this policy
If the app’s behavior ever changes, this page will change with it, and the date above will be updated.
Contact
Questions about this policy? Email us at app@neijuli.cn.