Flat vs NotationPlayer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
NotationPlayer
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NotationPlayer turns your sheet music into sound. Open any MusicXML or ABC file, choose from over 100 realistic instruments, and hear your music played back instantly - with full tempo control, transposition, and a built-in metronome. Try every feature free for 7 days. After that, a single one-time purchase keeps NotationPlayer fully working - no subscription, no ads. Built for trad and folk musicians, with full MusicXML support for classical, jazz, choral, and any sheet music you read. Now in English, Spanish and German. PLAY YOUR MUSIC • Play MusicXML and ABC notation files with realistic instrument sounds • Adjust tempo from half speed to double speed without changing pitch • Transpose to any key with one tap • Built-in metronome with click, woodblock, and bodhrán sounds • Count-in option for a clean start • Auto-scroll follows the music as it plays FIND NEW TUNES • Search over 30,000 traditional tunes from The Session • Browse the ABC Notation archive and Henrik Norbeck's collection • Paste ABC or MusicXML notation directly into the app • 55 sample tunes included - Celtic, Classical, Bluegrass, and Jazz LEARN AND PRACTISE • Tap any note to set a cue point and play from there • Loop any section by selecting start and end notes - perfect for tricky passages • Show note names on every note - as letters (C, D, E), in solfège (Do, Re, Mi) or German style (H, B) • Lyrics displayed and synced to playback • Swing control for jazz and traditional styles MULTI-TRACK MIXER • Assign different instruments to each voice or part • 100+ instruments including fiddle, tin whistle, mandolin, piano, guitar, flute, choir, and more • Volume, pan, mute, and solo controls per track • Hide parts from the score - see just your own line while the others keep playing • Guitar chord accompaniment from chord symbols ANNOTATE YOUR SCORES • Draw on your scores with pen and highlighter • Add text notes anywhere on the page • Multiple colours and tools • Your annotations are saved with each tune ORGANISE YOUR MUSIC • Build tune sets - group tunes into medleys that play seamlessly • Create playlists with sets and individual tunes • Ensemble mode - add backing instruments to your playlists • Speed control for playlist playback • Favourites and search across your library EXPORT AND SHARE • Export scores as PDF for printing or sharing with bandmates • Export audio as MP3 • Share with other musicians WORKS OFFLINE NotationPlayer works without an internet connection. Your tunes, instruments, and playlists are always available - perfect for rehearsals, sessions, and practice anywhere. FREE TRIAL, THEN BUY ONCE Every feature is unlocked for your first 7 days. After the trial, scores still open and play a 30-second preview; a one-time purchase unlocks everything again, for good. There is no subscription, and purchases can be restored on a new device. Built for musicians who want their notation to do more than just sit on the page. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is chart position: Flat at #169 against NotationPlayer's unranked. On price, update cadence, ads and in-app purchases 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
Both are free to download. Flat sells 10 in-app purchases, starting at $9.99 per month and NotationPlayer sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.
| Parameter | Flat | NotationPlayer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (7K ratings) — better | — |
| Positive reviews | 67.8% of reviews | — |
| Number of ratings | 7K — better | — |
| Update frequency | Fortnightly | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Best chart rank | #169 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 | 16.0 — better |
| Further details — not scored | ||
| Size | 219 MB | 50 MB |
| Age rating | +4 | 4+ |
| Developer | Tutteo Limited | ChorusLogic Ltd. |
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
NotationPlayer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Flat
- Flat Power (Monthly)$9.991 Month
- Flat Power (Yearly)$29.991 Year
- Flat Power (Yearly)$39.991 Year
Show 1 moreShow fewer
- Flat Power (Yearly)$49.991 Year
- PDF import 30 credits$9.99
- PDF import 70 credits$17.99
- Flat Power (Lifetime)$119.00
Show 3 moreShow fewer
- Flat Power (Lifetime)$179.99
- Flat Power (Lifetime)$199.00
- Flat Power (Lifetime)$299.99
NotationPlayer
- NotationPlayer Monthly$0.991 Month
- Full Access$6.99








