# Flat vs ClefBoard

The clearest difference is in-app purchases: ClefBoard at none against Flat's 10. ClefBoard also leads on update cadence (every 3 days vs fortnightly). Flat's advantage is chart position (#139 vs unranked). On price, ads, 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. ClefBoard asks for nothing beyond the download.

Flat ships an update fortnightly, ClefBoard every 3 days. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Flat | ClefBoard |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Freemium | — |
| Best chart rank | **#139** | — |
| Size | 219 MB | 43 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 12+ |
| Developer | [Tutteo Limited](https://appshunter.io/developer/1177592148) | [Stanley Liu](https://appshunter.io/developer/6786058512) |

## What reviewers say

### Flat

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

**Currently charting:** #139 Top Free · Music, #140 Top Grossing · 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


### ClefBoard

[App page](https://appshunter.io/ios/app/clefboard/id6786058510)

**In-app purchases:** none


## Frequently asked questions

### Is Flat free?

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

### Is ClefBoard free?

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

### Do Flat or ClefBoard have ads?

Neither Flat nor ClefBoard shows ads.

### Which is updated more often, Flat or ClefBoard?

Flat ships an update fortnightly, and ClefBoard every 3 days. Most recently, Flat was updated on November 7, 2026 and ClefBoard on November 5, 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.*