# Simple Calculator *FLAT calc vs Multi calculator  マルチ電卓

The clearest difference is ads: Simple Calculator *FLAT calc at none against Multi calculator  マルチ電卓's shown. Simple Calculator *FLAT calc also leads on iOS requirement (11.0 vs 13.2). On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Simple Calculator *FLAT calc | Multi calculator  マルチ電卓 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Size | 10 MB | 103 MB |
| Requires iOS | **11.0** | 13.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Bakerstreet Co., Ltd.](https://appshunter.io/developer/1090599145) | [touru tsuruta](https://appshunter.io/developer/1084745827) |

## What reviewers say

### Simple Calculator *FLAT calc

[App page](https://appshunter.io/ios/app/simple-calculator-flat-calc/id1392010421)

**Features:** macOS Compatibility

**In-app purchases:** none


### Multi calculator  マルチ電卓

[App page](https://appshunter.io/ios/app/multi-calculator/id1510076264)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Calculator *FLAT calc free?

Simple Calculator *FLAT calc is free to download, with no in-app purchases.

### Is Multi calculator  マルチ電卓 free?

Multi calculator  マルチ電卓 is free to download, with no in-app purchases.

### Do Simple Calculator *FLAT calc or Multi calculator  マルチ電卓 have ads?

Multi calculator  マルチ電卓 shows ads; Simple Calculator *FLAT calc does not.

### Which is updated more often, Simple Calculator *FLAT calc or Multi calculator  マルチ電卓?

Simple Calculator *FLAT calc ships an update every 2 months, and Multi calculator  マルチ電卓 every 2 months. Most recently, Simple Calculator *FLAT calc was updated on October 5, 2026 and Multi calculator  マルチ電卓 on October 16, 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.*