Qalculator.xyz vs ThetaCalc Usage & Stats
Whether it's calculations with units, physical constants or symbolic expressions, this calculator provides you instantly with results, thanks to the power of libqalculate.
- Apple App Store
- Free
- Utilities
Store Rank
- -
ThetaCalc is a RPN (Reverse Polish Notation) calculator which can be extended by functions and equations programmed by the user in JavaScript.
- Apple App Store
- Free
- Utilities
Store Rank
- -
Qalculator.xyz VS. 
ThetaCalcJanuary 17, 2026