# Clean Crosswords vs Four Arithmetic Operations

The clearest difference is in-app purchases: Four Arithmetic Operations at none against Clean Crosswords's 1. Four Arithmetic Operations also leads on ads (none vs shown) and iOS requirement (7.1 vs 16.0). On price and device support there is nothing between them.

Both are free to download. Clean Crosswords sells 1 one-off in-app purchase. Four Arithmetic Operations asks for nothing beyond the download.

## The numbers

| Metric | Clean Crosswords | Four Arithmetic Operations |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.9K ratings)](https://appshunter.io/ios/app/clean-crosswords/id773100196/reviews)** | — |
| Number of ratings | **1.9K** | — |
| Positive reviews | 65.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 229 MB | 11 MB |
| Requires iOS | 16.0 | **7.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [the binary family](https://appshunter.io/developer/307768703) | [Yu Saito](https://appshunter.io/developer/432081470) |

## What reviewers say

### Clean Crosswords

[App page](https://appshunter.io/ios/app/clean-crosswords/id773100196)

Enjoy a classic crossword experience designed for iOS devices. This app offers 1,800 puzzles with clues directly in the grid for easy viewing and play. It provides weeks of challenging fun in a clean, British English format.

**Highlights:** 1,800 crossword puzzles, Clues in puzzle grid, Classic British English, Designed for iPhone and iPad, Challenging fun

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $7.99 | one-time |

**What reviewers like**

- 👍 Challenging puzzles
- 🧠 Helps improve vocabulary and memory
- 🗓️ Lots of puzzles available
- 🎨 Clean and intuitive interface
- 💰 Free app with optional ad-free version

**What reviewers complain about**

- 🇬🇧 Too many British-centric references and spellings
- 🔁 Repetitive clues and answers
- 🐛 Crashes and freezes
- 📢 Intrusive ads in free version
- 🕹️ Navigation and layout issues on larger screens

**Reported bugs**

- Incorrect word definitions or answers
- Arrows pointing to wrong cells
- Puzzle progress not saving properly
- Ads causing app crashes or freezes

**Requested features**

- Dark mode option
- Progress tracking and statistics
- Ability to replay completed puzzles
- More variety in puzzle difficulty levels
- Better integration of American English


### Four Arithmetic Operations

[App page](https://appshunter.io/ios/app/four-arithmetic-operations/id1076116230)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Clean Crosswords free?

Clean Crosswords is free to download, with in-app purchases available.

### Is Four Arithmetic Operations free?

Four Arithmetic Operations is free to download, with no in-app purchases.

### Do Clean Crosswords or Four Arithmetic Operations have ads?

Clean Crosswords shows ads; Four Arithmetic Operations 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.*