Light Cross - LightUp Puzzle 4+

logic puzzle with light beam

    • 4.7 • 46 Ratings
    • Free
    • Offers In-App Purchases



Light Cross is a logic puzzle game using "light bulb & beam."
Set light bulbs on empty cells and illuminate all cells!
This is a great way to kill time!

Tap any cell on the screen to place a light bulb in it. Light beams from the light bulb spread out in four directions and illuminate all cells in each direction.
Each stage is completed when all cells are illuminated AND the following 2 rules are both satisfied:
[Rule One] No light bulbs can be placed in the path of light beams from the other light bulbs.
[Rule Two] The numbered blocks show the number of light bulbs you are going to place in the adjacent cells.

It is a very simple but arcane puzzle game. Let's start playing now!

• Easy operation.
• Over 1000 stages in 26 puzzle packs.
• Varied new stages will be added frequently.
• Cool graphics & sounds
• Support for Game Center: Let's play and compete with your friends!

• Ads are included in the free app (Ads can be removed by purchasing an add-on).
• Although over 200 free stages are included in the app, more stages can be played by purchasing additional puzzle packs.

This app includes;
- advertisement
- add-ons (In-App Purchases)
- a function to post on the SNSs
* No automatic post without operation.
- links to apps and the official site
- score data collection for displaying rankings
* By signing in the Game Center, play data such as the score will be automatically sent to the server and your account name and score will be shown on the leaderboard.

What’s New

Version 1.10.1

• Due to duplicate stage contents, the following stages have been newly re-designed. We apologize for the inconvenience.
Green Pack 4: Stage 7,12,20
Delivery Pack: Stage 144
• Improve compatibility with newer iOS
• Update Ads system
• Minor bug fixes and small improvements
* Due to technical reasons, this update requires iOS 11.0 or later

Ratings and Reviews

4.7 out of 5
46 Ratings

46 Ratings

Cali.C. ,

Fun and Challenging, but Calming!

This is one of VERY few reviews I’ve written for an app, but I love this type of puzzle (whatever the official name is) and would love to see more! In this app specifically gameplay is really smooth, and there’s an excellent scroll mechanic (which I can’t say for a lot of apps).

It’s also the only game I have on my phone where I leave the music on. It’s calming and fitting for the puzzle, and together with the background it actually adds to the atmosphere of the game? As if someone knew what they were doing?? What???

But seriously, this game makes me happy, and even happier when I see and hear the thought that went into making it fun to interact with. Support a smaller app developer and play!

(Adding 3/1/20) Opened the app after a week of not playing. I forgot to mention that this game SAVES YOUR PROGRESS on puzzles, which is something else a lot of apps don’t do. Love love love it.

cailanmac ,

Pretty close to perfect, buut…

Arguably too expensive… I’ve bought more than enough packs at 99¢ each that if I get bored replaying them, I’ll just delete the game for awhile; I can’t justify spending any more cash on this very simple game.

The only complaint regarding gameplay is that if I restart a level, the marks I’ve made in cells to designate “No Bulb” are cleared, and I have to go thru that whole process again — which can be a lot on certain levels. This should be a second, optional clearing determined by the player.

Otherwise, very fun, easy-to-mildly challenging puzzle game I can easily revisit over time.

hj01850 ,

These puzzles

Tests to the most simple on to the most complicated problem solving.

App Privacy

The developer,, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Other Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics
  • Other Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More


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