Comparison

Flat vs Clef Trainer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Flat

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
Read full description

Write, play and share music, anywhere! Flat is the sheet music app trusted by 5M+ musicians worldwide. Compose, notate, and collaborate on scores for any instrument, from guitar tabs to full orchestras, across iPhone, iPad, Mac, and your web browser. Free features include: → Quick notation input via touch piano, guitar fretboard, or drum pads → 90+ instruments including piano, guitar, violin, saxophone, drums, voice, and more → 100K+ original scores in the community → Edit music scores on iPhone, iPad, Mac, and in your web browser → Hundreds of notation symbols: articulations, dynamics, measures, text, and more → Autocompletion when adding chords → Transposition by key, interval, or tone → Import MusicXML and MIDI files → Import PDF sheet music and convert it into fully editable scores → Keyboard shortcuts for iPad keyboard and fretboard → Share scores publicly or privately Collaborate in real-time: → Real-time collaboration for a dynamic experience → Inline comments for live feedback → Find collaborators in the Flat community Share your music: → Join the monthly Flat community challenge and win prizes → Explore hundreds of thousands of original scores from composers worldwide → Get featured and connect with fellow musicians Subscribe to Flat Power to unlock the full experience across all your devices. Flat Power, premium features: → Unlimited cloud storage → Automatic sync so your full library stays connected on iPhone, iPad, Mac, and web browser → 180+ instruments including high-quality audio → Advanced export: individual parts, multi-rest print, remove Flat branding → Layout and styles: page dimensions, spacing, chord style, Jazz and Handwritten fonts → Custom note heads: Boomwhackers colors, Note Names, Shape-Note (Aiken) → Version history: view and revert to any past version of your scores → Advanced audio: per-part volume and reverb controls → Input notes with MIDI devices (USB and Bluetooth) → Autosave with full version history → Customizable keyboard shortcuts → Priority support → PDF and photo import pages included with every plan: - Monthly plan: 10 PDF import pages/month + full premium features - Yearly plan: 20 PDF import pages/month + full premium features (best value) - Lifetime plan: full premium features + 20 PDF import pages (one-time purchase, no renewal) Terms for in-app payments: Payment will be charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the period. Manage and cancel subscriptions in your App Store account settings. Any unused portion of a free trial, if offered, will be forfeited when a subscription is purchased. Our Terms of Service and Privacy Policy: https://flat.io/help/en/policies Questions or feedback: ios@flat.io

About

Clef Trainer

Features
Read full description

Ready to read sheet music faster? Clef Trainer offers focused practice drills designed to significantly improve your speed and accuracy in recognizing musical notes on the staff. Our clean and simple interface makes practicing easy and effective. Get started right away: Key Features: Focused Note Practice: Quickly identify notes presented on the musical staff. Customizable Sessions: Choose your practice duration – select from timed sessions (1, 10, 30 minutes) or practice indefinitely with the 'Unlimited' option. Clef Selection: Train on Treble clef, Bass clef, or a mix of both (Confirm if users can select individually in Settings, if so, mention it). Intuitive Interface: See the note clearly displayed on the staff and identify it (Mention the input method if relevant, e.g., "using the on-screen piano keys"). Performance Tracking: Monitor your score and accuracy during practice sessions. Your Statistics: Track your progress over time in the dedicated statistics section. See how your note recognition skills improve! (You can elaborate slightly here if the stats section shows specific metrics like accuracy %, notes per minute etc.) [Your App Name] is perfect for: Beginner musicians learning to read notes. Students needing extra sight-reading practice. Anyone wanting a quick and straightforward tool to keep their note-reading skills sharp. Download Clef Trainer now and start mastering music note recognition today!

Screenshots

Flat4 screens
Clef Trainer3 screens

Verdict

The call

The clearest difference is ads: Flat at none against Clef Trainer's shown. Flat also leads on chart position (#149 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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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

Scorecard3 real differences · 8 level
Flat versus Clef Trainer: the parameters behind the verdict, then further details
ParameterFlatClef Trainer
PriceFreeFree
Rating4.6 (7K ratings) — better—
Positive reviews67.8% of reviews—
Number of ratings7K — better—
Update frequencyFortnightlyEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
Best chart rank#149 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size219 MB29 MB
Age rating+44+
DeveloperTutteo LimitedTuan Anh Nguyen

Bugs and requests

Flat

Reported bugs

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

Requested features

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

Clef Trainer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Flat

Subscriptions4
  • Flat Power (Monthly)$9.991 Month
  • Flat Power (Yearly)$29.991 Year
  • Flat Power (Yearly)$39.991 Year
Show 1 more
  • Flat Power (Yearly)$49.991 Year
One-time6
  • PDF import 30 credits$9.99
  • PDF import 70 credits$17.99
  • Flat Power (Lifetime)$119.00
Show 3 more
  • Flat Power (Lifetime)$179.99
  • Flat Power (Lifetime)$199.00
  • Flat Power (Lifetime)$299.99
1 purchases

Clef Trainer

One-time1
  • Clef Trainer Plus$0.99

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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