# Pianotracker App vs ClefMastery

The clearest difference is in-app purchases: Pianotracker App at none against ClefMastery's 1. ClefMastery's advantage is update cadence (every 5 days vs every 6 weeks) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. ClefMastery sells 1 one-off in-app purchase. Pianotracker App asks for nothing beyond the download.

Pianotracker App ships an update every 6 weeks, ClefMastery every 5 days. The most recent releases landed on September 8, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Pianotracker App | ClefMastery |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Size | 23 MB | 20 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Florian Grundig](https://appshunter.io/developer/1808468315) | [Christopher Michaelis](https://appshunter.io/developer/902580084) |

## What reviewers say

### Pianotracker App

[App page](https://appshunter.io/ios/app/pianotracker-app/id6744614449)

**Features:** macOS Compatibility

**In-app purchases:** none


### ClefMastery

[App page](https://appshunter.io/ios/app/clefmastery/id6759814155)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClefMastery Lifetime Unlock | $9.99 | one-time |


## Frequently asked questions

### Is Pianotracker App free?

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

### Is ClefMastery free?

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

### Do Pianotracker App or ClefMastery have ads?

Neither Pianotracker App nor ClefMastery shows ads.

### Which is updated more often, Pianotracker App or ClefMastery?

Pianotracker App ships an update every 6 weeks, and ClefMastery every 5 days. Most recently, Pianotracker App was updated on September 8, 2026 and ClefMastery on September 13, 2026.

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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.*