# PianoDrill vs Keyflow

The clearest difference is in-app purchases: Keyflow at none against PianoDrill's 3. PianoDrill's advantage is iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. PianoDrill sells 3 in-app purchases, starting at $1.99 per month. Keyflow asks for nothing beyond the download.

## The numbers

| Metric | PianoDrill | Keyflow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Size | 18 MB | 34 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wannemacher Software Service GmbH](https://appshunter.io/developer/1771696061) | [Pawel Frydrych](https://appshunter.io/developer/1854865260) |

## What reviewers say

### PianoDrill

[App page](https://appshunter.io/ios/app/pianodrill/id6755365954)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access for one month | $1.99 | per month |
| Premium Yearly | $8.99 | per year |
| Premium Lifetime | $12.99 | one-time |


### Keyflow

[App page](https://appshunter.io/ios/app/keyflow-learn-piano/id6762548013)

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

**In-app purchases:** none


## Frequently asked questions

### Is PianoDrill free?

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

### Is Keyflow free?

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

### Do PianoDrill or Keyflow have ads?

Neither PianoDrill nor Keyflow 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.*