# Flat vs Clef Trainer

The clearest difference is ads: Flat at none against Clef Trainer's shown. Flat also leads on chart position (#160 vs unranked). Clef Trainer's advantage is update cadence (every 4 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Flat sells 10 in-app purchases, starting at $9.99 per month and Clef Trainer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Flat ships an update fortnightly, Clef Trainer every 4 days. The most recent releases landed on October 28, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Flat | Clef Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7K ratings)](https://appshunter.io/ios/app/flat-sheet-music-maker-and-tabs/id1177592149/reviews)** | — |
| Number of ratings | **7K** | — |
| Positive reviews | 67.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Freemium | — |
| Best chart rank | **#160** | — |
| Size | 219 MB | 29 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [Tutteo Limited](https://appshunter.io/developer/1177592148) | [Tuan Anh Nguyen](https://appshunter.io/developer/1702873367) |

## What reviewers say

### Flat

[App page](https://appshunter.io/ios/app/flat-sheet-music-maker-and-tabs/id1177592149)

**Currently charting:** #160 Top Grossing · Music, #168 Top Free · Music (US App Store)

Create, edit, and play sheet music and guitar tabs with this intuitive composer app. It offers a wide range of instruments, notation tools, and collaboration features. Import and export in various formats, and share your creations with a large community.

**Highlights:** Compose and edit sheet music, Create guitar tabs, Real-time collaboration, Import MusicXML, MIDI, PDF, Export to PDF, MIDI, MP3, WAV, Large community library, 90+ instruments

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flat Power (Monthly) | $9.99 | per month |
| Flat Power (Yearly) | $29.99 | per year |
| Flat Power (Yearly) | $39.99 | per year |
| Flat Power (Yearly) | $49.99 | per year |
| PDF import 30 credits | $9.99 | one-time |
| PDF import 70 credits | $17.99 | one-time |
| Flat Power (Lifetime) | $119.00 | one-time |
| Flat Power (Lifetime) | $179.99 | one-time |
| Flat Power (Lifetime) | $199.00 | one-time |
| Flat Power (Lifetime) | $299.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Great for beginners
- 🎨 Lots of customization options
- 🎶 Extensive instrument selection
- 💡 Collaborative features

**What reviewers complain about**

- 🐛 Buggy and glitchy
- 🔒 Limited free features
- 💰 Expensive subscription
- 🔊 Poor audio quality
- 📏 Rigid layout and formatting

**Reported bugs**

- App crashes frequently
- Notes and rests disappear
- Playback issues and audio glitches
- Difficulty selecting and editing notes
- Syncing and saving problems

**Requested features**

- Add more percussion instruments
- Improve note entry and editing
- Allow custom soundfonts
- Implement measure repeat signs
- Add more advanced notation options


### Clef Trainer

[App page](https://appshunter.io/ios/app/clef-trainer/id6745273935)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clef Trainer Plus | $0.99 | one-time |


## Frequently asked questions

### Is Flat free?

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

### Is Clef Trainer free?

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

### Do Flat or Clef Trainer have ads?

Clef Trainer shows ads; Flat does not.

### Which is updated more often, Flat or Clef Trainer?

Flat ships an update fortnightly, and Clef Trainer every 4 days. Most recently, Flat was updated on October 28, 2026 and Clef Trainer on October 17, 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.*