Download the free installation package of Calibrated Accurate Level 2.1 and take a look at users' reviews on Droid Informer. The app runs on Android devices 1.5 and above. The download of this application doesn't contain viruses or any kind of malware. Marplotter is the developer of the tool that can be found in the Books & Reference category.
The most recent update of Calibrated Accurate Level was launched on November 1, 2010 and the app has been set up by over 1K users. People rated this application 3.5 on Google Play.