The app is completely safe for downloading. Old School Calculator has been originally designed by Alex Gugel and it relates to the Educational category. On Google Play, the tool is rated 4.3 by its users.
This application has been downloaded and set up by over 100 users and the latest update was released on December 10, 2011. Download the installer of Old School Calculator 2.1.1 for free and have a look at users' reviews on Droid Informer. The app works flawlessly on Android 2.1 and above.