# MathU RPN Calc vs 12Calc

The clearest difference is price: 12Calc at $8.99 against MathU RPN Calc's $24.99. 12Calc also leads on ratings volume (924 vs 148). MathU RPN Calc's advantage is update cadence (every 6 weeks vs every 5 months). On rating, review sentiment, ads and in-app purchases there is nothing between them.

MathU RPN Calc costs $24.99 and 12Calc $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for MathU RPN Calc against 4.9 for 12Calc. That said, the two scores are not equally well evidenced: 12Calc has 924 ratings behind it against 148, so its average is the more settled of the two. Written reviews are what separate them: 93% of MathU RPN Calc's written reviews are positive against 96% of 12Calc's.

MathU RPN Calc ships an update every 6 weeks, 12Calc every 5 months. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | MathU RPN Calc | 12Calc |
| --- | --- | --- |
| Price | $24.99 | **$8.99** |
| Rating | **[5.0 (148 ratings)](https://appshunter.io/ios/app/mathu-rpn-calc/id293653078/reviews)** | [4.9 (924 ratings)](https://appshunter.io/ios/app/12calc/id780780002/reviews) |
| Number of ratings | 148 | **924** |
| Positive reviews | 92.5% of reviews | **95.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | Paid | Paid |
| Best chart rank | **#148** | #153 |
| Size | 8 MB | 6 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Creative Creek, LLC](https://appshunter.io/developer/293653081) | [Ernest Brock](https://appshunter.io/developer/289555912) |

## What reviewers say

### MathU RPN Calc

[App page](https://appshunter.io/ios/app/mathu-rpn-calc/id293653078)

**Currently charting:** #148 Top Paid · Finance (US App Store)

This advanced scientific and financial calculator utilizes the Reverse Polish Notation (RPN) system. It offers over 96 functions, catering to professionals with features for finance, programming, and general scientific calculations. Optimized for iOS devices, it provides a robust and accurate computational experience.

**Highlights:** RPN entry system, Over 96 functions, Scientific calculations, Financial calculations (IRR, NPV, mortgage), Programmer's calculator (HEX, OCT, DEC, BIN), IEEE double precision accuracy, Portrait/landscape keypad switching

**Features:** Vision Pro support

**In-app purchases:** none


### 12Calc

[App page](https://appshunter.io/ios/app/12calc/id780780002)

**Currently charting:** #153 Top Paid · Finance (US App Store)

This app provides a full-featured financial calculator experience, replicating the functionality of a popular physical model. It offers an audit tape for tracking calculations, a unit converter with currency exchange rates, and various worksheets with interactive graphs for financial analysis. Optimized for modern devices with high-resolution graphics and support for multiple orientations.

**Highlights:** HP12C emulation, Audit tape for calculation history, Unit and currency converter, Interactive financial worksheets, Portrait and landscape views, Contextual help and tutorials, HD graphics with color themes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MathU RPN Calc free?

MathU RPN Calc costs $24.99, with no in-app purchases.

### Is 12Calc free?

12Calc costs $8.99, with no in-app purchases.

### Which has better reviews, MathU RPN Calc or 12Calc?

MathU RPN Calc is rated higher. MathU RPN Calc averages 5.0 out of 5 from 148 ratings, while 12Calc averages 4.9 from 924 ratings.

### Do MathU RPN Calc or 12Calc have ads?

Neither MathU RPN Calc nor 12Calc shows ads.

### Which is updated more often, MathU RPN Calc or 12Calc?

MathU RPN Calc ships an update every 6 weeks, and 12Calc every 5 months. Most recently, MathU RPN Calc was updated on October 27, 2026 and 12Calc on October 26, 2026.

### Which is more popular, MathU RPN Calc or 12Calc?

MathU RPN Calc currently peaks at #148 in the App Store charts, and 12Calc at #153. Chart position reflects recent download velocity rather than total install base.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*