# フルエン vs Solitary Number

The clearest difference is in-app purchases: フルエン at none against Solitary Number's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Solitary Number sells 1 one-off in-app purchase. フルエン asks for nothing beyond the download.

## The numbers

| Metric | フルエン | Solitary Number |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | — |
| Size | 119 MB | 40 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [littlesyntax](https://appshunter.io/developer/1517725480) | [TATSUYA TAGUCHI](https://appshunter.io/developer/1886335141) |

## What reviewers say

### フルエン

[App page](https://appshunter.io/ios/app/fluent/id6743142206)

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

**In-app purchases:** none


### Solitary Number

[App page](https://appshunter.io/ios/app/solitary-number/id6773939414)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is フルエン free?

フルエン is free to download, with no in-app purchases.

### Is Solitary Number free?

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

### Do フルエン or Solitary Number have ads?

Both フルエン and Solitary Number show ads.

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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.*