# RedCrab Calculator vs Input Calculator

The clearest difference is in-app purchases: Input Calculator at none against RedCrab Calculator's 1. Input Calculator also leads on ads (none vs shown). RedCrab Calculator's advantage is iOS requirement (15.6 vs 18.0). On price and device support there is nothing between them.

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

## The numbers

| Metric | RedCrab Calculator | Input Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/input-calculator/id6702001389/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | — | Free |
| Size | 4 MB | 1 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [少泽 梁](https://appshunter.io/developer/897112791) | [Shafqat Rahman](https://appshunter.io/developer/1743700538) |

## What reviewers say

### RedCrab Calculator

[App page](https://appshunter.io/ios/app/redcrab-calculator/id947845140)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 终身会员 | $1.99 | one-time |


### Input Calculator

[App page](https://appshunter.io/ios/app/input-calculator/id6702001389)

This app offers both basic and scientific calculation modes, supporting a wide range of operations including trigonometry and logarithms. It features a clear expression display, customizable themes, and haptic feedback for an enhanced user experience.

**Highlights:** Basic and scientific calculation modes, Trigonometric and logarithmic functions, Full expression display, Dark and light mode options, Haptic feedback on button press, Theme customization, Responsive layout for various devices

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RedCrab Calculator free?

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

### Is Input Calculator free?

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

### Do RedCrab Calculator or Input Calculator have ads?

RedCrab Calculator shows ads; Input Calculator does not.

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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.*