All important mathematical functions and physical constants packed in an easy-to-use and beautiful interface - that's 2sum - Scientific Calculator for Android™. Use 2sum in school, for your studies, or quickly check what the %-discount saves you with the percent function. 2sum brings on-the-fly calculation and a two-line display to Android and makes it easy to retrieve saved calculations from the built-in history.

Check the detailed features list:

•  On-the-fly calculation - see results as you type.
•  High precision calculation engine
•  Advanced math functions - see screenshots for full list.
•  Physical Constants - speed of light to Avogadro's constant
•  %-function - quickly calculate discounts.
•  History - save & edit result (short click) or full calculation (long click) later.
•  M+/M-/MC/MR keys for intermediate results
•  FIX/FLOAT mode
•  DEG/RAD mode

With the pro version, you furthermore obtain
•  Decimal/thousands separator option
•  Fancy interface effects
•  Optional fullscreen mode - hide the system UI

2sum does not show advertisements for the first seven days of use. We want to give you the best possible user experience and therefore refrain from showing mass popup advertisements. We hope some of you appreciate our attitude towards advertisement and support us by leaving a positive rating or - even better - buying the pro version. Thanks in advance.