Note Trainer Pro vs Chordio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Note Trainer Pro
This app helps users improve their music reading skills through interactive exercises. It offers a range of difficulty levels, tracks progress, and supports various musical notations and input methods.
- Note and chord exercises
- Customizable difficulty levels
- Multiple notation systems
- Transposing instrument support
- Treble, Bass, Alto, Tenor clefs
- MIDI and virtual piano input
- Progress statistics
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Note Trainer is designed to help train your ability to read music. It is aimed at beginners, music students, musicians and anyone interested in musical reading. Note Trainer includes exercises reading musical notes and musical chords. Exercise levels range from beginner to advanced. Note Trainer will guide you and recommend exercises to help you gradually improve your skills. More advanced users can focus on different areas of the application or select to start training at a higher level. When an exercise is complete the users' statistics are saved allowing them to track their progress and easily return to areas that need more training. Note Trainer indicates when a user is ready to move on to the next exercise. Features: - Preset exercises for notes and chords - Custom exercises for notes and chords - Note Trainer supports English (B, Bb), German (H, B), and Solfége (Do, Re, Mi) notation - Supports transposing instruments - Includes Treble, Bass, Alto and Tenor clefs - Answer using MIDI device (*), virtual piano or answer buttons - Answer by singing or playing an instrument (iPhone 5s and newer) - Visual feedback on virtual piano and note view - Statistics - Time challenge mode - Studio sound quality *) Using a MIDI-input device may require an Apple USB Camera Connection Kit
Chordio
This app is a music composition and theory tool that helps musicians explore chords and scales interactively. It offers features for creating, storing, and rearranging chord progressions, along with integrated music theory lessons and practice tools. It's designed to spark creativity and enhance music learning for producers, composers, and educators.
- Chord progression generator
- Custom chord creation and editing
- Real-time MIDI input visualization
- Scales and modes practice
- Music theory lessons and quizzes
- Sheet music practice tools
- Chord Suggestion AI
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Looking for a spark for your upcoming song? Introducing Chordio, a powerful tool for composition and music theory that offers an enjoyable and interactive experience. This app allows you to explore chords and scales in a fun and engaging way. It also provides a convenient platform for storing all your distinctive musical chord progressions in a single location. As a result, Chordio becomes an indispensable resource for contemporary music producers, composers, and educators. Take your music theory knowledge to the next level and create innovative chord progressions for your latest composition. With a range of internal sounds included, you can explore the tool's features without needing any other external equipment. Connect your MIDI controller to Chordio and see chord names appear on the Grand Staff in real-time as you play. Solo over chord progressions using the built-in sounds, and quickly rearrange or transpose chord progressions on the fly for added flexibility. Uncover fresh chord sequences for any genre - from hip hop to house and everything in between. Simply drag and drop them into your DAW! Chordio empowers you to unleash your creativity and take your music to new heights. The main features are divided into four workspaces: Composition • Build-in sequencer to create chord progressions. • Build-in Chord progression generator. • Create custom chords, edit existing chords, get chord inversions, and extended chords. • Drag & Drop to change the song structure. • Transpose the entire chord progression with a single tap. • Create a playlist of custom chord progressions. • Chord Suggestion AI – Get intelligent chord recommendations that fit your existing progression, and seamlessly integrate them into your composition. • A Chord Types & Vocings panel helps you generate new chords. • Play-along with a backing rhythm track. • Save/load songs, export it as MIDl. • Download chord progressions from a growing collection of Chord Packs. Scales • Practice scales with a metronome in all keys. • Contains more than 40 scales you can work with. • Staff view for chords and scales. Modes • Interactive way to learn what scales are associated with each mode. • Practice modes in Chordio. • Change tonic, mode, and layout to discover the relationship between musical notes, chords, and scales. Music Theory * In-app theory lessons. • 3 New Music Theory Quizzes: Note Identification, Interval Recognition & Chord Identification. Sheet Music • Adjust the Tempo: Practice at your own speed. • Loop Key Sections: Focus on tricky parts with ease. • Practice Hands Separately: Work on left or right hand independently. • Play in Any Key: Transpose sheet music to suit your preference. • Customize Tracks: Adjust instrument volumes. • Jazz Solo: Jam over chord progressions. • Print Your Scores: Print a PDF version of the score for flexible, hands-on practice. Lessons • Learn to play songs at your own pace. • Download music from a growing collection of Lesson Packs. • Lessons can be slowed down or pitch changed. KEY FEATURES: • MIDI keyboard support. • Build progressions using the chord generators. • Export MIDI to your DAW or sequencer. • Custom chords, edit existing chords, get extended chords. • Play internal sounds. • Arpeggio, strum and performance modes. • Mac version include a detachable resizable Grand Staff, Chord Display, and Keyboard Views. • Customise the Keyboard highlight color. • Select chord, to display a range of related scales and chords. • Tap a note on the Grand Staff to highlight it with a color. • Choose from selection of backing rhythms that fit specific genres. • Chord Pattern playback Always backup your chord progressions!
Screenshots
Verdict
The clearest difference is price: Chordio at Free against Note Trainer Pro's $3.99. Chordio also leads on update cadence (every 10 days vs every 4 months). Note Trainer Pro's advantage is in-app purchases (none vs 19) and rating (4.8 vs 4.4). On ads and device support 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
Chordio is free to download; Note Trainer Pro costs $3.99 up front. Chordio sells 19 one-off in-app purchases. Note Trainer Pro asks for nothing beyond the download.
Note Trainer Pro holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Note Trainer Pro has 917 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 88% of Note Trainer Pro's written reviews are positive against 62% of Chordio's.
Note Trainer Pro ships an update every 4 months, Chordio every 10 days. The most recent releases landed on September 29, 2026 and October 1, 2026 respectively.
| Parameter | Note Trainer Pro | Chordio |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.8 (917 ratings) — better | 4.4 (8 ratings) |
| Positive reviews | 88.2% of reviews — better | 61.5% of reviews |
| Number of ratings | 917 — better | 8 |
| Update frequency | Every 4 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPad, Mac |
| Requires iOS | 12.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 33 MB | 202 MB |
| Age rating | 4+ | 4+ |
| Developer | thoor software AB | One In A Billion Ltd |
Customer experience
Note Trainer Pro
Chordio
Bugs and requests
Note Trainer Pro
Reported bugs
3 issues- Crashes when playing certain notes/chords
- MIDI connectivity issues on some devices
- Note recognition errors in certain exercises
Requested features
4 requests- Add more advanced exercises like chord progressions and modulations
- Include a timer and progress tracking system
- Expand the note/chord range to cover the full piano keyboard
- Allow customization of exercise difficulty and note/chord selection
Chordio
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Note Trainer Pro
No in-app purchases
Chordio
- Free Chord PackFree
- Gymnopedie No.1$1.99
- Arabesque No.1$1.99
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- Gnossienne No.1$1.99
- Chord Progressions 251 No.1$2.99
- Jazz Progressions 01$5.99
- Neo-Soul Progressions 01$5.99
- Neo-Soul Tunes 01$5.99
- RnB Chords No.1$5.99
- Classical Progressions 1$5.99
- II-V-I Progression$5.99
- RnB Progressions 01$5.99
- Beginner Essentials$6.99
- RnB Progressions, Vol. 1$7.99
- II-V-I Jazz Progressions$9.99
- Jazz Progression, Vol. 1$9.99
- Jazz Lick Exercises, Vol. 1$9.99
- Classical Collection, Vol. 1$14.99
- Unlock App$14.99
Questions
Is Note Trainer Pro free?
Is Chordio free?
Which has better reviews, Note Trainer Pro or Chordio?
Do Note Trainer Pro or Chordio have ads?
Which is updated more often, Note Trainer Pro or Chordio?
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