# Calculate+4 vs Simple Calculator Multi

The clearest difference is update cadence: Calculate+4 at every 2 months against Simple Calculator Multi's every 13 months. Calculate+4 also leads on iOS requirement (9.0 vs 15.1). 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.

Calculate+4 ships an update every 2 months, Simple Calculator Multi every 13 months. The most recent releases landed on October 25, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Calculate+4 | Simple Calculator Multi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 13 months |
| Size | 23 MB | 25 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rooking,Inc.](https://appshunter.io/developer/1054334319) | [tadashi endo](https://appshunter.io/developer/1605441215) |

## What reviewers say

### Calculate+4

[App page](https://appshunter.io/ios/app/calculate-plus-4-simple-calculator/id1464624084)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Calculate+4 free?

Calculate+4 is free to download, with no in-app purchases.

### Is Simple Calculator Multi free?

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

### Do Calculate+4 or Simple Calculator Multi have ads?

Neither Calculate+4 nor Simple Calculator Multi shows ads.

### Which is updated more often, Calculate+4 or Simple Calculator Multi?

Calculate+4 ships an update every 2 months, and Simple Calculator Multi every 13 months. Most recently, Calculate+4 was updated on October 25, 2026 and Simple Calculator Multi on October 2, 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.*