# V4 vs AnaFlow Keys

The clearest difference is in-app purchases: V4 at none against AnaFlow Keys's 10. V4 also leads on iOS requirement (9.1 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. AnaFlow Keys sells 10 in-app purchases, starting at $9.99 per month. V4 asks for nothing beyond the download.

## The numbers

| Metric | V4 | AnaFlow Keys |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Size | 32 MB | 440 MB |
| Requires iOS | **9.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [GGE](https://appshunter.io/developer/1198669637) | [Paulo Nascimento dos Santos](https://appshunter.io/developer/1751304904) |

## What reviewers say

### V4

[App page](https://appshunter.io/ios/app/v4/id1198669638)

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

**In-app purchases:** none


### AnaFlow Keys

[App page](https://appshunter.io/ios/app/anaflow-keys/id6776449082)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AnaFlow Premium Mensal | $9.99 | per month |
| AnaFlow Premium Anual | $79.99 | per year |
| Gymnopédie No. 1 | $1.99 | one-time |
| Für Elise | $1.99 | one-time |
| Sonata ao Luar | $1.99 | one-time |
| Sonata Patética Op. 13 | $1.99 | one-time |
| Prélude | $1.99 | one-time |
| Serenata | $1.99 | one-time |
| Tango | $1.99 | one-time |
| Prelúdio em Dó (BWV 846) | $1.99 | one-time |


## Frequently asked questions

### Is V4 free?

V4 is free to download, with no in-app purchases.

### Is AnaFlow Keys free?

AnaFlow Keys is free to download, with in-app purchases available.

### Do V4 or AnaFlow Keys have ads?

Neither V4 nor AnaFlow Keys shows 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.*