Delete account and data in Mattegnist

Last updated 15 September 2026 · Applies to Mattegnist (the apps and mattegnist.no), run by Skjld Labs

This page is for anyone who plays Mattegnist – in the app on a phone or tablet, or on mattegnist.no – and for teachers using Mattegnist in class. Here we explain exactly how to delete your account and data, what disappears right away, and what we might keep.

Deleting your account in the app (Android and iOS)

If you have the Mattegnist app on your phone or tablet:

1. Open Profile.
2. Tap "Delete account".
3. Confirm by tapping "Delete" in the dialog that appears. If the player has an account (username and password), the password must be typed in first.

The player, all rounds and group memberships are deleted immediately – this cannot be undone.

Deleting your account on mattegnist.no

1. Log in with your username and password.
2. Go to My page.
3. At the bottom you will find the button "Delete my account" (playing as a guest without an account: "Delete my player").
4. If you have an account, type your password. Confirm in the dialog. Deletion happens immediately.

Only playing locally?

If you have never created a player account and never joined a class or group, your progress only lives on that one device – we have nothing stored on our side to delete. Remove the data by uninstalling the app, or by clearing the app data in your device settings.

What is deleted, and what stays?

When the account is deleted – in the app, on the website, or by an app calling DELETE /api/v1/me – we immediately and permanently remove:

• the player – nickname, emoji, and (if the player has an account) the username and password, which is never stored as plain text anyway
• every round played and every score
• memberships in classes and groups, and any groups the player owns
• the sign-in on every device (the keys the app uses to know who you are)

This stays, because it was never linked to you:

• anonymous, aggregate usage counts (visits, task sets created, answers checked) – with no name, nickname or anything else traceable to you
• ordinary technical error logs on the server – they do not contain your nickname, password or scores, and are automatically deleted after 14 days

Teachers

The teacher account (email and password) does not yet have a "delete account" button in the teacher dashboard. Email hello@skjldlabs.com from the address you registered with, and we will delete your account and the classes you own – within 30 days.