Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 4.1.4, updated 2026-05-15.
Store screenshots supplied by the developer.
MathU RPN is an advanced scientific and financial calculator designed in the spirit of classic HP calculators. MathU RPN is based on the Reverse Polish Notation (RPN) entry system and combines more than 96 functions to create a calculator that meets the needs of professionals who use a calculator every day. First released in 2008, the calculator continues to be updated with new features as iOS improves.
MathU RPN works on the iPhone, iPad and macOS. On the iPad, MathU RPN maintains its orientation as the iPad is turned and you can rotate it from portrait to landscape keypad layout via the Rotate button. When the iPad has a hardware keyboard attached, you can type of the names of the buttons the keyboard to execute them -- thus avoiding having to press the calculator keys with your finger.…
From the developer’s store description.
For developers and the curious
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Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
We are excited to announce that MathU RPN now runs on macOS as well as iOS! Both Intel and Apple Silicon is supported for macOS. The 4.1.4 release fixes a minor layout bug I found after the previous release. Keyboard support: An attached external keyboard can be used with the calculator to access the functions (type of name on the top if a button). Tap the Key Help button to see what strings will work to "press" a button on the keypad.
Appworthy
mathu-rpn-calcWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
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