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About Music Theory by Justin Guitar

Tired of theory lessons that put you to sleep? Welcome to the app that turns music theory into a guitar superpower! The Music Theory by JustinGuitar app utilizes Justin's proven guitar-first approach to transform complex theory into practical playing skills. Finally understand music the way that actually makes sense for guitarists. Unlike traditional theory courses that leave you drowning in abstract concepts, this app gets you playing immediately. Every lesson combines bite-sized theory with hands-on fretboard exercises. No passive watching - this is active learning that sticks. Why This Changes Everything: Skip the hours of videos and textbooks. Work through interactive lessons that take you straight to the practical stuff. See a pattern, play it instantly and understand it forever. It's the most efficient way to finally "get" music theory as a guitar player. This knowledge will supercharge your motivation as you unlock new levels in your playing. What You'll Accomplish: • Stop feeling lost when people talk about keys, scales, notes, and chord progressions • Learn songs by ear instead of relying on tabs • Memorize and find any chord/note on the fretboard instantly • Recognize the patterns hiding in every song you love • Join jams with confidence instead of just following along • Create your own music and write killer riffs because you understand what makes them work • Break through that frustrating plateau you've been stuck on • Accelerate your learning by knowing the language of music Built Purposefully for Guitarists: Everything happens on the fretboard where you actually play. No confusing piano diagrams or abstract notation, it’s music theory you can use immediately. Interactive Learning That Sticks: • Quick exercises that build on each other systematically • Fretboard trainer that helps you memorize essential notes and chords • Immediate feedback so you know you're getting it right • Learn at your own pace without getting overwhelmed • Apply new concepts instantly to the music you love From the Teacher Millions Trust: Justin Sandercoe has taught millions of guitarists worldwide through his legendary JustinGuitar platform. His clear, encouraging teaching style has helped everyone from absolute beginners to touring professionals unlock their potential. Ready to finally understand the music you love? Download the app and transform from stuck to unstoppable today! We’d love to hear your feedback - email us at [email protected] *The lowest requirements for using the app on the i Phone are: - iPhone 6S (2015) - iPad (5th generation, 2017) - iPad mini (4th generation, 2015) - iPad Air (2nd generation, 2014) - iPad Pro (2015) -iOS 15 or newer *Not optimized for PC or Mac Important subscription information Justin Guitar offers several FULL ACCESS subscription packages that unlock unlimited access to all the published stages. Subscription purchases are charged to your iTunes account upon confirmation of the purchase. All subscriptions will AUTOMATICALLY be renewed unless the auto-renew is turned off at least 24 hours prior to the end of the current period. Your iTunes account will be charged a normal subscription price of the original subscription within 24 hours prior to the end of the current period. You can manage your subscriptions and turn off auto-renew by going to your Account Settings after the purchase. Subscriptions are non-refundable and may not be cancelled during an active subscription period. Our privacy policy can be found at https://www.musopia.net/privacy/ Terms of use: https://musopia.net/terms

Ratings & reviews

4.8

382 ratings

5 ★ 89% 4 ★ 6% 3 ★ 3% 2 ★ 1% 1 ★ 2%

What’s new

Version 1.0.5 · Updated September 18, 2026

This update includes general fixes and polish, including smoother tutorial guidance and more reliable account notifications.

App privacy

The developer, Musopia, reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers: User ID, Device ID

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • User Content: Customer Support

Used for: App Functionality

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Identifiers: Device ID, User ID
  • Usage Data: Product Interaction
  • Diagnostics: Crash Data
  • Purchases: Purchase History

Used for: Third-Party Advertising, Analytics, Product Personalization, App Functionality

Alternatives to Music Theory by Justin Guitar

Looking for apps like Music Theory by Justin Guitar? Here are 6 similar apps on the App Store. The highest rated is Pickup Music: Music Lessons (4.9/5), and all 6 are free to download.

Music Theory by Justin Guitar vs. alternatives
App Rating Price Last updated
Music Theory by Justin Guitar 4.8 / 5 (382 ratings) Free September 18, 2026
Grokit: Guitar & Music Theory 4.4 / 5 (57) Free Sep 3, 2026
Fretionary 4.6 / 5 (25) Free Aug 23, 2026
NoSheet: Speak Music! 4.3 / 5 (26) Free Sep 17, 2026
Pickup Music: Music Lessons 4.9 / 5 (1,214) Free Sep 17, 2026
Fretonomy - Learn Fretboard 4.6 / 5 (2,475) Free Sep 27, 2026
Marty Music 4.6 / 5 (10) Free Jun 4, 2026