Privacy for MathMarket
Last updated: September 28, 2026
MathMarket is offered under the Skjerme.no brand, operated by MORSTAD IT. You can practice math without creating an account.
What is saved on your device
Player names and avatars, points, answers and progress, rewards, prices and receipts are saved on your device. The app also saves recent emoji choices, language, sound, difficulty and parent settings. A nickname is enough. People using the same device can see profiles and receipts.
Offline, without ads or tracking
The game works without internet. MathMarket does not send profiles or game progress to us and has no cloud sync of its own. The app has no ads, analytics or tracking tools.
Parent controls
The parent menu and player deletion require your chosen app PIN or device authentication. An app PIN is saved on the device. With Face ID, Touch ID or a device passcode, your device checks your identity. MathMarket receives only the result.
Deleting a player
On the player selection screen, tap the bin beside a player, authenticate as a parent and confirm deletion. This removes their profile, points, progress and receipts from the app on this device. Shared rewards and parent settings remain. Player data is kept until you delete it.
Device backups
Apple backups may include app data, depending on your settings. Deleting data in the app does not change older backups. You can manage these backups in your device settings.
Privacy questions
Contact post@skjerme.no. If you email us, we receive your email address and the information you choose to share.