# Basic Calculator. vs CalculatorRed

The clearest difference is in-app purchases: CalculatorRed at none against Basic Calculator.'s 1. CalculatorRed also leads on ads (none vs shown). Basic Calculator.'s advantage is update cadence (every 2 weeks vs every 4 weeks) and iOS requirement (13.0 vs 17.0). On price and device support there is nothing between them.

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

Basic Calculator. ships an update every 2 weeks, CalculatorRed every 4 weeks. The most recent releases landed on October 1, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Basic Calculator. | CalculatorRed |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (147 ratings)](https://appshunter.io/ios/app/basic-calculator/id6447476116/reviews)** | — |
| Number of ratings | **147** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 4 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 69 MB | 1 MB |
| Requires iOS | **13.0** | 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

### Basic Calculator.

[App page](https://appshunter.io/ios/app/basic-calculator/id6447476116)

A straightforward and user-friendly calculator app designed for quick calculations. It features a display log, 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, Designed for quick calculations, User-friendly interface

**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 Basic Calculator. free?

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

### Is CalculatorRed free?

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

### Do Basic Calculator. or CalculatorRed have ads?

Basic Calculator. shows ads; CalculatorRed does not.

### Which is updated more often, Basic Calculator. or CalculatorRed?

Basic Calculator. ships an update every 2 weeks, and CalculatorRed every 4 weeks. Most recently, Basic Calculator. was updated on October 1, 2026 and CalculatorRed on September 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*