# PianoDrill vs Clef Sight Reading Trainer

The clearest difference is iOS requirement: PianoDrill at 13.0 against Clef Sight Reading Trainer's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. PianoDrill sells 3 in-app purchases, starting at $1.99 per month and Clef Sight Reading Trainer sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PianoDrill | Clef Sight Reading Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Size | 18 MB | 68 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wannemacher Software Service GmbH](https://appshunter.io/developer/1771696061) | [Mel Owen](https://appshunter.io/developer/1674940249) |

## 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 |


### Clef Sight Reading Trainer

[App page](https://appshunter.io/ios/app/clef-sight-reading-trainer/id6768969191)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Clef | $9.99 | one-time |
| Clef Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is PianoDrill free?

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

### Is Clef Sight Reading Trainer free?

Clef Sight Reading Trainer is free to download, with in-app purchases available.

### Do PianoDrill or Clef Sight Reading Trainer have ads?

Neither PianoDrill nor Clef Sight Reading Trainer shows ads.

### Which is updated more often, PianoDrill or Clef Sight Reading Trainer?

PianoDrill ships an update every 3 days, and Clef Sight Reading Trainer every 3 days. Most recently, PianoDrill was updated on October 10, 2026 and Clef Sight Reading Trainer on October 24, 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.*