Daily Lumen

Place lights until the room glows.

A cozy Light Up. Set down lamps so every corner is lit, no lamp shines into another, and each numbered wall has exactly the right number of lights beside it.

Coming soon to the App Store

Free, every day. Lumen+ is one optional purchase, never a subscription.

Daily Lumen screen 1 — Learn it in seconds

Daily Lumen screen 2 — Today's puzzle, ready

Daily Lumen screen 5 — Your streak, growing

Place

Set a lamp on the grid.

Glow

Light up every dark cell.

Match

Get each number right.

One grid, shared by everyone. The whole world gets the same grid each day. Compare your time, or send a friend a result that gives nothing away.
Streaks that forgive you. Show up daily and your streak grows. Miss a day and a banked freeze covers for you, no drama.
Nothing watching you. No ads, no accounts, no tracking. Your stats never leave your phone.
Lumen+, if you want more. A single, optional purchase for endless practice and a difficulty dial. No subscription, no nagging.