Sumsy privacy policy
Last updated 6 November 2026
The short version
Sumsy is a math puzzle game for children aged 5 to 9, made by Milan Chheda. It collects no personal information. It has no ads, no accounts, no analytics and no in-app purchases, and it cannot connect to the internet.
What Sumsy keeps on your device
To work, Sumsy saves a few things in its own storage on your device:
- Your child's birth month and year, which choose math questions for their age and the starting difficulty.
- A nickname and a buddy picture, if you pick them.
- Puzzle progress, hints, streak, badges and stats.
- Settings such as sound, music and grid look.
None of this leaves your device through Sumsy. The developer never receives it and cannot see it.
Device backup
If backup is turned on for your device, Android may include Sumsy's saved data in your device backup in your Google account, so progress can move to a new device. Google runs this backup, and you can turn it off in your device settings. The developer cannot read it.
Crash reports
If you have chosen to share usage and diagnostics data with Google on your device, Google Play may give the developer anonymous crash and performance reports. They hold technical details about the device and the crash, never anything entered in Sumsy.
Sharing
Sumsy shares no information with anyone. It contains no third-party code that collects data, such as ads or analytics.
Children
Sumsy is made for children. It asks children for no personal information, has no chat or social features and has no links out of the app. The grown-ups area, where you change your child's details, is behind a parental check.
Keeping and deleting data
Sumsy's data stays on your device until you delete it. Reset progress, in the grown-ups area, clears puzzles, hints, streak, badges and stats. Uninstalling Sumsy, or clearing its storage in your device settings, deletes everything. The developer keeps no copy, so there is nothing to delete on the developer's side.
Changes to this policy
If this policy changes, the new version will be posted at https://sumsy.milanchheda.com/privacy.html with a new date. If a future version of Sumsy ever needs to collect information, this policy will say so before that version is released.
Contact
Questions about privacy in Sumsy? Email Milan Chheda at [email protected].