iPhone Screenshots


Turns your iPhone into a carpenter's bubble level, inch ruler, and centimeter ruler.

Uses the accelerometer in your iPhone or iPod Touch to display an animated bubble level. A numeric readout displays the tilt in degrees. Sound feedback lets you know when the device is level.

This application is based on sample code given to iPhone developers, with the addition of rulers. I take absolutely no credit for creating this application. I just think it's cool enough that it should be distributed for free.

The code license states that developers may "modify and redistribute the Apple Software, with or without modifications, in source and/or binary forms". I'm distributing it modified for the world to enjoy.

Thank you Apple for creating this incredible iPhone platform!

Ratings and Reviews

2.6 out of 5
19.8K Ratings

19.8K Ratings

Good username ,

No, really

This game is really fun. My son and I can spend hours trying to keep that bubble thing in the middle box. One time my son was playing in another room, and I heard that "winning" sound for 45 minutes straight. I was like "no way!" Turns out, he just put it on a level surface. Ha! What a way to cheat. Anyway, we enjoy it and hope to see more games soon!

nysalesman ,

Just use manual calibration

First, I agree this is not accurate and a calibration feature would be great. Based on that alone I would give it one star. However, that doesn't mean it's not useful, simply calibrate it against a known level and remember where the bubble center should be (on my phone it's -2.5 degrees, which puts the left dark line exactly in the center of my bubble). So now I know to use -2.5 degrees as my square. Based on the fact that this is still usable with a mental calibration I would instead give it three stars, but becasue it's free it's getting four. If it had an internal calibration feature it would get five stars.

Yeah, I'm a nerd, so sue me. ,

No Problems Here

I read alot of the complaints about this level not being accurate, but I can't say I've had that problem. It's been dead-on accurate for me. I do wish, however, there was an option to shut off the sounds so I don't have to turn my ringer off when I use it -- I'm not always good at remembering to turn it back on. Otherwise, a great little app and you can't beat the price!


Keaka Jackson
431.2 KB

Requires iOS 2.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2008 The World


  • Family Sharing

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

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