# CalculatorRed vs Simple Calculator

The clearest difference is price: CalculatorRed at Free against Simple Calculator's $0.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

CalculatorRed is free to download; Simple Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CalculatorRed ships an update every 4 weeks, Simple Calculator every 5 weeks. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | CalculatorRed | Simple Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Size | 1 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kodwerk Software Ltd.](https://appshunter.io/developer/1741040469) | [SMART BIT K.K](https://appshunter.io/developer/1896559487) |

## What reviewers say

### CalculatorRed

[App page](https://appshunter.io/ios/app/calculatorred/id6496602010)

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple Calculator

[App page](https://appshunter.io/ios/app/simple-calculator-soft-keys/id6789476119)

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

**In-app purchases:** none


## Frequently asked questions

### Is CalculatorRed free?

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

### Is Simple Calculator free?

Simple Calculator costs $0.99, with no in-app purchases.

### Do CalculatorRed or Simple Calculator have ads?

Neither CalculatorRed nor Simple Calculator shows ads.

### Which is updated more often, CalculatorRed or Simple Calculator?

CalculatorRed ships an update every 4 weeks, and Simple Calculator every 5 weeks. Most recently, CalculatorRed was updated on October 12, 2026 and Simple Calculator 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.*