# Line Number Puzzle vs Sync Duo

The clearest difference is in-app purchases: Sync Duo at none against Line Number Puzzle's 7. Line Number Puzzle's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Line Number Puzzle sells 7 one-off in-app purchases. Sync Duo asks for nothing beyond the download.

## The numbers

| Metric | Line Number Puzzle | Sync Duo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Size | 157 MB | 36 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CDT GAMES LIMITED](https://appshunter.io/developer/1845993422) | [Murat Erdem Bostancioglu](https://appshunter.io/developer/1454618949) |

## What reviewers say

### Line Number Puzzle

[App page](https://appshunter.io/ios/app/line-number-puzzle/id6774131843)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin pack 1 | $0.99 | one-time |
| Coin pack 2 | $1.99 | one-time |
| Coin pack 3 | $3.99 | one-time |
| Coin pack 4 | $5.99 | one-time |
| Remove ads | $7.99 | one-time |
| Coin pack 5 | $9.99 | one-time |
| Coin pack 6 | $19.99 | one-time |


### Sync Duo

[App page](https://appshunter.io/ios/app/sync-duo/id6821461669)

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

**In-app purchases:** none


## Frequently asked questions

### Is Line Number Puzzle free?

Line Number Puzzle is free to download, with in-app purchases available.

### Is Sync Duo free?

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

### Do Line Number Puzzle or Sync Duo have ads?

Sync Duo shows ads; Line Number Puzzle 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.*