RPN
Tomas Stankiewicz Baldassarri Utilities iPhoneiPadiPod touch
RPN is a free Utilities app for iPhone and iPad by Tomas Stankiewicz Baldassarri. Requires iOS 16.6. Updated October 10, 2026.
- Price
- Free
- on the App Store
- Size
- 5 MB
- Age 4+
- Updated
- Oct 10
- 2026 · v1.4
Screenshots
About RPN
Simple reverse polish notation calculator. To make an operation you tap the number using the digit buttons. When you want to insert the number into the stack you press the orange button "Enter". When you're done inserting the numbers just tap the operation to do it. The result will be displayed but not put again into stack. Example: 6+7 is 6 enter, 7 enter +
What’s new
Version 1.4 · Updated October 10, 2026
• 1.4 - Support for iPhone Duo.
App privacy
The developer, Tomas Stankiewicz Baldassarri, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to RPN
Looking for apps like RPN? Here are 6 similar apps on the App Store. The highest rated is RePNCalc - RPN Calculator Pro (5.0/5), and 5 of the 6 are free to download.
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Enter — RPN Calculator
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CalcStak
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RePNCalc - RPN Calculator Pro
5.0
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SwiftRPN
-
RPN Calc
4.0
-
Gen's Calculator
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| RPN | – | Free | October 10, 2026 | |
| Enter — RPN Calculator | – | Free | Oct 3, 2026 | Compare |
| CalcStak | – | Free | Jun 2, 2026 | Compare |
| RePNCalc - RPN Calculator Pro | 5.0 / 5 (1) | Free | Jan 22, 2025 | Compare |
| SwiftRPN | – | Free | Oct 16, 2026 | Compare |
| RPN Calc | 4.0 / 5 (6) | 0.99 USD | Aug 13, 2026 | Compare |
| Gen's Calculator | – | Free | Mar 18, 2026 | Compare |
Compare RPN with the top alternatives: ratings, updates, ASO score and keyword gaps →