# RPN Calculus vs Calculate Note

The clearest difference is review sentiment: RPN Calculus at 100% against Calculate Note's 0%. RPN Calculus also leads on rating (4.0 vs 1.0) and ads (none vs shown). Calculate Note's advantage is price (Free vs $1.99). On ratings volume, in-app purchases and device support there is nothing between them.

Calculate Note is free to download; RPN Calculus costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RPN Calculus holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of RPN Calculus's written reviews are positive against 0% of Calculate Note's.

RPN Calculus ships an update every 4 months, Calculate Note every 18 months. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | RPN Calculus | Calculate Note |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/rpn-calculus/id374359458/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/calculate-note-tip-sharing/id1390348844/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 18 months |
| Monetization | Paid | **Ad-supported** |
| Size | 11 MB | 5 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Braun](https://appshunter.io/developer/296553965) | [CHI HAO CHIU](https://appshunter.io/developer/1059226484) |

## What reviewers say

### RPN Calculus

[App page](https://appshunter.io/ios/app/rpn-calculus/id374359458)

This scientific calculator app for iPad offers a clean RPN interface with basic and advanced functions. It supports high precision calculations and provides an extensive, user-extendable database of scientific constants.

**Highlights:** RPN (Reverse Polish Notation) interface, Basic and advanced mathematical functions, High precision calculations (up to 15 digits), Extensive scientific constant database, User-extendable constant database, Memory space for values

**In-app purchases:** none


### Calculate Note

[App page](https://appshunter.io/ios/app/calculate-note-tip-sharing/id1390348844)

This calculator app records all your calculations with customizable names and comments. Easily find past calculations and share your notes directly with others. It helps you keep track of your financial entries beyond just numbers.

**Highlights:** Records all calculations, Customizable calculation names, Add comments to calculations, Quickly find calculation notes, Share calculation notes

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

**In-app purchases:** none


## Frequently asked questions

### Is RPN Calculus free?

RPN Calculus costs $1.99, with no in-app purchases.

### Is Calculate Note free?

Calculate Note is free to download, with no in-app purchases.

### Which has better reviews, RPN Calculus or Calculate Note?

RPN Calculus is rated higher. RPN Calculus averages 4.0 out of 5 from 1 ratings, while Calculate Note averages 1.0 from 1 ratings.

### Do RPN Calculus or Calculate Note have ads?

Calculate Note shows ads; RPN Calculus does not.

### Which is updated more often, RPN Calculus or Calculate Note?

RPN Calculus ships an update every 4 months, and Calculate Note every 18 months. Most recently, RPN Calculus was updated on October 14, 2026 and Calculate Note on October 5, 2026.

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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.*