NIOL Lab — Sudoku Lab and Block Lab

Support

Last updated — August 23, 2026

Crashed, lost a record, or just want to send a suggestion? Start with the common questions below — if that does not sort it out, just write to us.

Frequently asked questions

How do I reset my progress?
Inside the app, go to Settings → Reset progress. Uninstalling and reinstalling the app also wipes everything.

My record disappeared when I switched devices.
Progress is saved only locally on your device — there is no account or cloud sync yet. Switching phones starts from scratch.

The ads are not showing up.
Ads depend on an internet connection and on inventory being available at that moment. Sometimes there is no ad to show — that does not affect the game itself.

I found a bug or the app crashed.
Send us an email with your device model, the system (iOS/Android) and what you were doing when it happened. It helps a lot to fix it fast.

I have a feature suggestion.
We love hearing ideas — send them over, seriously.