The best hooktheory apps on iPhone average 4.6★ across 148+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
Learn to craft melodies and chord progressions like a pro with interactive lessons and audiovisual examples from popular songs. This app provides an intuitive understanding of music theory, with practical exercises and a companion sketchpad for immediate practice.
Explore music theory with a visual representation of the 12 keys. Understand scales, compose chord progressions, and mix in key. Features color-coded relationships, key signatures, and sounded chords for each key.
What We Love
👍 Easy to use
🚀 Simple and effective
🎨 Great visual representation
🔊 Helpful audio feedback
Room to Improve
🔧 Lacks some advanced features
🔀 Difficulty toggling between chord and arpeggio modes
Explore chords, scales, and progressions to compose music. Visualize musical structures on a virtual piano and staff, with interactive tools and audio playback. Ideal for musicians of all levels seeking inspiration and understanding.
What We Love
🚀 Great app, great value for money
👍 Useful for learning piano
👍 Helpful for music production
👍 Intuitive and easy to use
Room to Improve
🐛 Bugs and glitches in desktop and mobile versions
Hooktheory I tops our hooktheory apps ranking as of August 2026, with a 4.1-star average from 11 App Store ratings, and it's priced at $14.99.
Are there free hooktheory apps for iPhone?
Yes — 18 of the top hooktheory apps we rank are free to download, including Circle of Fifths and Piano Chords and Scales.
Does Hooktheory I have ads or in-app purchases?
Hooktheory I has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
How many hooktheory apps are on the App Store?
We track 148+ hooktheory apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
What does Hooktheory I teach?
Hooktheory I teaches essential basic techniques for crafting effective and compelling chord progressions and melodies. It covers composing music based on a scale, understanding basic chords, writing progressions based on function, and making melodies 'chord aware'.
Do I need to know how to read sheet music to use Hooktheory I?
No, reading Hooktheory I does not require any previous music knowledge or the ability to read sheet music. It uses simple piano roll notation.