App: PiPad - Calculation & Note
Developer: Pavlo Liashenko
Genres: Productivity, Utilities

Perform calculations as you would in your notepad. Mix calculations and text. Reuse and correct them whenever you want and get new results instantly.

+ Variables will make your calculations more convenient and understandable
+ Links to a row value allows you to use the results of intermediate calculations
+ Operations with units of measurement have never been so simple
+ The fresh exchange rates are already in the app
+ Сustom rate and units
+ Multilines Functions 
+ Conditional branching for non-linear calculations
+ Formatted text
+ Fully customizable interface
+ High calculation accuracy up to 32 significant digits

I will be glad to your feedback Please, send any your comments to my mail support@3bitlab.com

Release notes:
Fixed bugs and improved app stability!