# RPNu vs Calccis

The clearest difference is update cadence: Calccis at every 3 weeks against RPNu's every 2 months. RPNu's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RPNu ships an update every 2 months, Calccis every 3 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RPNu | Calccis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calccis/id6446233205/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 49 MB | 1 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Scott Johnson](https://appshunter.io/developer/580251998) | [Jukka Aittola](https://appshunter.io/developer/1676073314) |

## What reviewers say

### RPNu

[App page](https://appshunter.io/ios/app/rpnu/id1195709318)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calccis

[App page](https://appshunter.io/ios/app/calccis/id6446233205)

**In-app purchases:** none


## Frequently asked questions

### Is RPNu free?

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

### Is Calccis free?

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

### Do RPNu or Calccis have ads?

Neither RPNu nor Calccis shows ads.

### Which is updated more often, RPNu or Calccis?

RPNu ships an update every 2 months, and Calccis every 3 weeks. Most recently, RPNu was updated on October 26, 2026 and Calccis on October 24, 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.*