Calculator 3


Features/Planned | Screenshots | Download | Notice/Help | Changelog

Calculator 3


Build: 16022801

from: 2016/02/28

OS: Android 2.1 or higher

Type: Freeware (no ads)


Scientific Calculator 3 is an easy to use universal scientific calculator app for Android smartphones, tablets or other Android touchscreen devices. It evaluates basic mathematical as well as nested scientific expressions under consideration of the algebraic convention "brackets before power before point before line calculation".  The rounding of results is adjustable between 5 and 15 digits. Available notations are normal notation (NORMal),  scientific notation (SCIentific) and engineering notation (ENGineering). Trigonometric calculations optionally in Degrees (DEG: 1°=PI/180) or Radians (RAD: 1rad=180°/PI).
Scientific Calculator 3 provides a large history display, where all inputs and results can be checked easily. This calculation history is kept until explicit deletion.

For devices without menu button: please touch the screen longer than 3sec to invoke the setup/options menu!


Functions on main display:

Functions via "sci"-Button or on large displays:

Further features planned:


Please click to enlarge picture or to start slideshow:

Calculator 3 Calculator 3 Calculator 3

Download / Install

Android app on Google Play Scientific Calculator 3 available on kindle fire Calculator 3, Download at heise apk download from

*To allow the download and installation of Android applications from the internet, you need to enable the option "Unknown sources / Allow installation of non-Market applications" on your Android smartphone or tablet.

Notice / Help

1. Calculator 3 is based on the Open Source Software Arity-2.1.6, “Arithmetic Engine for Java" (Copyright © 2007-2009 Mihai Preda), which is licensed under the Apache License 2.0.

2. We test our applications very carefully before we release them. However, if you find a problem please help us solving it and send us an error report.


2016/02/28, V1.8
2015/03/23, V1.7
2013/12/02, V1.6
2013/11/19, V1.5.2
2013/06/27, V1.5.1
2013/06/13, V1.5
2013/01/28, V1.4.2
2013/01/03, V1.4.1
2012/12/31, V1.4
2012/09/06, V1.3
2012/08/13, V1.2
2012/06/22, V1.1
2012/06/12, V1.0
2012/04/26, V0.9.2
2012/01/27, V0.9.1