Stackis RPN
Skimra Utilities iPhoneiPadiPod touch
Stackis RPN is a free Utilities app for iPhone and iPad by Skimra. Rated 5.0/5 from 2 ratings. Requires iOS 17.6. Updated May 4, 2026.
- Rating
- 5.0
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 10 MB
- Age 4+
- Updated
- May 4
- 2026 · v1.3.1
Screenshots
About Stackis RPN
This is an RPN calculator in the style of, for instance, old HP models. It will feel familiar if you are used to RPN, otherwise it will probably be a little confusing at first. It's not programmable and it doesn't try to mimic older hardware; it's just meant to be a pleasant calculator for those who prefer to use RPN. Also, if you want to perform calculations in duodecimal (dozenal), this app is for you!
What’s new
Version 1.3.1 · Updated May 4, 2026
Fixed a couple of bugs, plus it now allows typing of decimal numbers starting with the decimal point.
App privacy
The developer, Skimra, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: User ID
- Diagnostics: Other Diagnostic Data
Used for: Analytics
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Stackis RPN | 5.0 / 5 (2 ratings) | Free | May 4, 2026 | |
| Check Split and Tip Calculator | 5.0 / 5 (4) | Free | Oct 26, 2026 | Compare |
| Easy Calculator - EasyCalc | 4.0 / 5 (12) | Free | Sep 20, 2026 | Compare |
| LudyExif - EXIF Editor | 3.5 / 5 (2) | Free | Apr 20, 2026 | Compare |
| Zip File – Zip, Unzip, Protect | 2.3 / 5 (3) | Free | Jul 11, 2026 | Compare |
| ContactKit - Backup to Mail | – | 0.29 USD | Feb 26, 2026 | Compare |
| Bubble Level & Angle Finder | 4.6 / 5 (21) | Free | Jul 20, 2026 | Compare |
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