# Calculator CIassic vs CalculatorRed

The clearest difference is in-app purchases: CalculatorRed at none against Calculator CIassic's 1. CalculatorRed also leads on ads (none vs shown). Calculator CIassic's advantage is update cadence (weekly vs every 4 weeks) and iOS requirement (12.0 vs 17.0). On price and device support there is nothing between them.

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

Calculator CIassic ships an update weekly, CalculatorRed every 4 weeks. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Calculator CIassic | CalculatorRed |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (10 ratings)](https://appshunter.io/ios/app/calculator-ciassic/id6447488409/reviews)** | — |
| Number of ratings | **10** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 4 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 62 MB | 1 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Edison Largo](https://appshunter.io/developer/978541799) | [Kodwerk Software Ltd.](https://appshunter.io/developer/1741040469) |

## What reviewers say

### Calculator CIassic

[App page](https://appshunter.io/ios/app/calculator-ciassic/id6447488409)

A straightforward and user-friendly calculator app designed for quick calculations. It features a display log for tracking calculations, a backspace key for corrections, and supports both decimal points and commas.

**Highlights:** Display log for calculations, Backspace key for corrections, Decimal point and comma support, Easy-to-use interface, Suitable for students and professionals

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


### CalculatorRed

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator CIassic free?

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

### Is CalculatorRed free?

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

### Do Calculator CIassic or CalculatorRed have ads?

Calculator CIassic shows ads; CalculatorRed does not.

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

Calculator CIassic ships an update weekly, and CalculatorRed every 4 weeks. Most recently, Calculator CIassic was updated on October 2, 2026 and CalculatorRed on October 12, 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.*