Support
Something not working, or a level that seems impossible? Write to support@ontheblink.app and say which iPhone you have and what happened.
How to play
Tap a room to switch its light. The rooms above, below and beside it switch too. Turn every room dark to finish a level. Stuck? The hint shows a room worth trying.
Your progress
Progress is kept on your iPhone. Deleting the app deletes it.
On the Blink is made by Michael Aaron.