# My RPN Calculator — My RPN Calculator

> My RPN Calculator (iPhone/iPad app by Ling Lin.)

- Source: https://appshunter.io/ios/app/my-rpn-calculator/id1451441996 (this page in markdown: same URL + `.md`)
- Developer: [Ling Lin](https://appshunter.io/developer/1451441905)
- Category: Utilities, Education
- Price: $4.99
- Age rating: 4+
- Requires: iOS 11.0 · 41 MB
- Released: 2019-08-31
- Data updated: 2026-06-30
- User reviews in markdown: https://appshunter.io/ios/app/my-rpn-calculator/id1451441996/reviews.md

## What is My RPN Calculator?

myRPNcalculator REL_1_2_0
- Rebuild the entire application on the latest iOS and the latest tech stacks.

myRPNcalculator REL_1_1_4
- Implement and support light and dark iOS theme.
- Add flyoutmenu for user to choose different colors.
- It supports a few new colors below. They are available for both light and dark themes.
 - default
 - pink
 - red
 - orange
 - green
 - blue
- Make the memory value visible as the first display entry with name "m".

myRPNcalculator 1.0 Features

- Display top 6 entries of the current stack values.
- Math operations
    * Sign: plus, minus.
    * Constants: e, pi.
    * Unary Operations: percent, sin, cos, tan, rad, asin, acos, atan, rad, deg, cubic, cubic root, square, square root, x-th power of e. x-th power of 10, x-th power of 2, ln, log base 10 or x, log base 2 of x, factorial of x, inversion of x.
    * Binary Operations: division, multiplication, subtraction, addition, y-th power of x, y-th root of x.

- Stack operations: x-y swap, roll-up (x vault roll up), roll-down (x vault roll down), drop (drop x value from the stack).
- Entry operations: AC (All Clear), C (Clear entry), Backspace.
- Memory operations: mc (memory clear), m+ (add to memory), m- (subtract from the memory value), mr (memory recall).


## Version history (last 4 releases)

### 1.2.0 — 2024-12-22

- It uses the latest iOS and framework. It should supports all new iPhone sizes.
- All the previous features should be intact.

### 1.1.4 — 2021-08-23

myRPNcalculator REL_1_1_4
- Implement and support light and dark iOS theme.
- Add flyoutmenu for user to choose different colors.
- It supports a few new colors below. They are available for both light and dark themes.
 - default
 - pink
 - red
 - orange
 - green
 - blue
- Make the memory value visible as the first display entry with name "m".
- Data persistency - the stack data and memory data stay the same between app shut down and restart.

### 1.0.3 — 2020-01-13

myRpnCalculator 1.0.3
- Make sure negate key press only toggles the sign of the xStack entry. It doesn’t add a new entry.

### 1.0 — 2019-08-30

No release notes.

## Apps similar to My RPN Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [bcRPN](https://appshunter.io/ios/app/bcrpn/id1614744829) | 4.8 (4) | Free | Utilities |
| [mo.ride - The motorcycle app.](https://appshunter.io/ios/app/moride-the-motorcycle-app/id1263923061) | 4.4 (145) | Free | Utilities |
| [RPN Calc](https://appshunter.io/ios/app/rpn-calc/id285002799) | 3.3 (4) | $0.99 | Utilities |
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## Related topics

[my rpn calculator](https://appshunter.io/ios/topics/my-rpn-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-30.*