# RPN vs Pentatronics 1000

The clearest difference is price: Pentatronics 1000 at Free against RPN's $3.99. Pentatronics 1000 also leads on rating (5.0 vs 4.6) and update cadence (fortnightly vs every 3 months). RPN's advantage is ratings volume (17 vs 4). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Pentatronics 1000 is free to download; RPN costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pentatronics 1000 holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 17 and 4 respectively. Written reviews point the same way: 93% of RPN's written reviews are positive against 100% of Pentatronics 1000's.

RPN ships an update every 3 months, Pentatronics 1000 fortnightly. The most recent releases landed on October 20, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | RPN | Pentatronics 1000 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.6 (17 ratings)](https://appshunter.io/ios/app/rpn-67-sd/id1109722386/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/pentatronics-1000/id1506502614/reviews)** |
| Number of ratings | **17** | 4 |
| Positive reviews | 92.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Paid | **Free** |
| Size | 63 MB | 1 MB |
| Requires iOS | **12.0** | 13.3 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CuVee Software](https://appshunter.io/developer/424873503) | [Paul Novaes](https://appshunter.io/developer/597527233) |

## What reviewers say

### RPN

[App page](https://appshunter.io/ios/app/rpn-67-sd/id1109722386)

This app simulates a vintage programmable calculator from the mid-70s, offering enhanced features beyond the original. It allows users to run existing programs, manage virtual cards, and utilize advanced functions for scientific and engineering tasks.

**Highlights:** Virtual program and data cards, Virtual paper tape printer, Database-driven card manager, Create, label, and organize unlimited cards, Share cards via email, AirDrop, Dropbox, Editable program listings, Enhanced features for more program steps and registers

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

**In-app purchases:** none


### Pentatronics 1000

[App page](https://appshunter.io/ios/app/pentatronics-1000/id1506502614)

Experience a faithful re-creation of a legendary gaming calculator from a bygone era. This app brings back the iconic "READY" message and the novelty of having a game on a calculator, blending math with fun, style, and humor.

**Highlights:** Faithful re-creation of a legendary gaming calculator, Iconic "READY" message, Calculator with built-in games, Emphasis on fun, style, and humor, Brings a rare collectible to mobile

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RPN free?

RPN costs $3.99, with no in-app purchases.

### Is Pentatronics 1000 free?

Pentatronics 1000 is free to download, with no in-app purchases.

### Which has better reviews, RPN or Pentatronics 1000?

Pentatronics 1000 is rated higher. RPN averages 4.6 out of 5 from 17 ratings, while Pentatronics 1000 averages 5.0 from 4 ratings.

### Do RPN or Pentatronics 1000 have ads?

Neither RPN nor Pentatronics 1000 shows ads.

### Which is updated more often, RPN or Pentatronics 1000?

RPN ships an update every 3 months, and Pentatronics 1000 fortnightly. Most recently, RPN was updated on October 20, 2026 and Pentatronics 1000 on October 3, 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.*