Simple RPN calculator that never produce error. It use fractional representation internally.

Operate in RPN manner. If you tap "mode", the display switches between fractional and decimal representation.

App Privacy

The developer, Shinsaku Hiura, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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