Description
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!
Customer Reviews
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.
Calibration is needed
It is a well-known fact that iPhone accelerometer is not calibrated, and data varies from one phone to the other. Many apps that make use of the accelerometer implement software calibration to offset those differences, even the apps where precision is not important. As it is now, this app can not be used for its intended purpose - when perfectly level, it shows -2 degrees on my iPhone. I understand that it is written by Apple, but nobody stops you from further improving it, and I hope to see calibration in the next version.
Has potential
It's great as a free app, but with no calibration feature it's useless. As it comes, it's about -2.2 degrees off, as checked against 2 differet REAL levels. This is a visible error if you use it for something as minor as to hanging pictures, if you try to build something with it, it's going to be mighty skewed. Please add a calibration feature!
- Free
- Category: Utilities
- Released:Aug 25, 2008
- Version:1.0
- 1.0
- 0.4 MB
- Language:English
- Seller:Keaka Jackson
- © 2008 The World
Requirements:Compatible with iPhone, iPod touch, and iPad. Requires iPhone OS 2.0 or later.
