# Simple Calculator Multi vs RotON

The clearest difference is in-app purchases: Simple Calculator Multi at none against RotON's 1. Simple Calculator Multi also leads on iOS requirement (15.1 vs 17.6). RotON's advantage is update cadence (every 5 days vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. RotON sells 1 one-off in-app purchase. Simple Calculator Multi asks for nothing beyond the download.

Simple Calculator Multi ships an update every 13 months, RotON every 5 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Simple Calculator Multi | RotON |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 5 days** |
| Size | 25 MB | 8 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [tadashi endo](https://appshunter.io/developer/1605441215) | [MUNEATSU G.K.](https://appshunter.io/developer/1534902759) |

## What reviewers say

### Simple Calculator Multi

[App page](https://appshunter.io/ios/app/simple-calculator-multi-screen/id1605441213)

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

**In-app purchases:** none


### RotON

[App page](https://appshunter.io/ios/app/roton/id6754537065)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 拡張機能（プレミアム） | $1.99 | one-time |


## Frequently asked questions

### Is Simple Calculator Multi free?

Simple Calculator Multi is free to download, with no in-app purchases.

### Is RotON free?

RotON is free to download, with in-app purchases available.

### Do Simple Calculator Multi or RotON have ads?

Neither Simple Calculator Multi nor RotON shows ads.

### Which is updated more often, Simple Calculator Multi or RotON?

Simple Calculator Multi ships an update every 13 months, and RotON every 5 days. Most recently, Simple Calculator Multi was updated on October 25, 2026 and RotON on October 25, 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.*