Privacy Policy
Sudoku Classroom · Last updated: 2026-09-19
Ggeomddakji ("we") takes your privacy seriously. This policy applies to Sudoku Classroom only. Our other apps are covered by this policy.
Information we collect
We collect no personal information. No name, email address, phone number, location, or contacts. There are no accounts and no sign-in, and we include no analytics software that records how you use the app. The developer has no access to your progress.
If you email us, your address and message remain in our inbox; we delete them within one year of resolving the matter.
What is stored on your device and in iCloud
The following is stored on your device. If iCloud sync is on, it is also kept in your own private iCloud storage so you can continue on another device signed in to the same Apple Account. That storage belongs to your account — it is not our server, and the developer cannot read it.
| Item | Purpose |
|---|---|
| Puzzles solved, times, scores | To show your record and score history |
| Saved boards (your digits and notes) | So you can pick a puzzle back up |
| Hint count and how hints were granted | To keep count of your hints |
| Days attended and your streak | To give you attendance rewards |
| Settings (music, sound, haptics, keypad side) | To remember your preferences |
To stop iCloud sync, turn this app off under Settings > Apple Account > iCloud on your device; your record then stays on the device only. The app's More screen shows which of the two is currently in effect.
Advertising
This app offers rewarded ads: you choose to watch a short ad to receive extra hints or to restore hearts. Ads are delivered by Google AdMob, and in doing so Google may process an advertising identifier along with device and ad-interaction data. We neither receive nor store that data.
- Consent for personalised ads — In the EEA, the UK and Switzerland, Google's consent form appears the first time you open the app. You can change your choice at any time.
- App Tracking Transparency (iOS) — iOS asks whether the app may track your activity across other companies' apps and websites. Declining does not reduce your rewards — you simply see non-personalised ads. You can change this at any time in Settings > Privacy & Security > Tracking.
- SKAdNetwork — Apple's ad attribution mechanism, which reports only in aggregate and does not identify you.
How Google handles data in advertising: Google partner sites policy
Sharing with third parties
We do not hand your information to anyone. The following services handle data under their own policies.
Retention and deletion
We hold nothing of yours. Everything below is yours to delete.
- All of your record — More > Erase all records in the app. Times, scores and saved boards are cleared from both the device and iCloud (your hints remain).
- Everything on the device — deleting the app removes it.
- What remains in iCloud — Settings > Apple Account > iCloud on your device lets you delete this app's data.
There is no need to ask us to delete anything, because we hold nothing.
Children's privacy
This app is not directed at children, and we collect no personal information from anyone, children included.
Changes to this policy
If this policy changes, we update this page and the date above.
Contact
| Business name | Ggeomddakji |
|---|---|
| Registration no. | 413-21-02441 |
| support@ggeomddakji.com |