PGF 2014 Awards for Best Educational Game and Most Innovative Game. Judges from Microsoft & Amazon.

Light This Up is a simple yet addictive puzzle game.

Draw wires and connect electrical components to light this bulb. Components should sum up to the right power for your bulb to light up.

Free to play through lots of levels.

* Simple to learn, challenge to master
* Smooth draw line experience
* Over 200 fun levels
* Tons of fun with your friends

What’s New

Version 1.5.9

Minor bug fixes. Thank you all to all our fans for their love!

Ratings and Reviews

4.4 out of 5
25 Ratings

25 Ratings

AndyCa55 ,

Light it up

Good math skill game, though sot of misleading re use of resistors in a lighting circuit. Resistors are not rated by voltage, but by ohms (and to lesser extent, wattage - which simply specifies the amount of current which may pass through it). In real life, the larger the secondary resistance in the series circuit, the dimmer the lamp.

That said, I'm enjoying the game and think it would be great for kids. Learning about circuits is darn important.

Swellshark ,

Fun app

I want to learn about electronics and found this app. It helps learning the symbols found in schematic.

curiosityband ,

So fun & educational!

I’ve always wanted to learn to read a schematic & it’s never been more awesome!


19.7 MB

Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Traditional Chinese

Age Rating
Rated 4+
© 2014 Kooapps LLC
In-App Purchases
  1. Bonus Pack $0.99
  2. Multiplier Pack (6x6) $0.99
  3. 7x7 Mania $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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