SUS4 Practice
Practise like it's a game.
Free · In-App Purchases
Something to aim for in a short session before school or after work. Today's routine sets it, the journal keeps the record, and each world ends with a boss.
Practise like it's a game. Improve like it's real.
SUS4 Practice is a full music-practice game — 250 levels across multiple themed worlds, with characters, achievements, boss levels, and Game Center leaderboards — that is actually built around real musical skills. The exercises are real: scales, arpeggios, ear training, rhythm, theory. The game mechanics make you want to come back every day.
The on-device AI tutor adjusts difficulty in real time based on your performance. A daily routine is available to every user, with no paywall on the essential practice habit. Boss levels test what you have learned across an entire world before you move on. The level packs — Jazz, Latin, Metal, Blues, and Classical — each add 50 levels built around the specific vocabulary of that genre.
• 250 levels across multiple themed worlds
• Multiple game modes per level
• Boss levels at the end of each world
• Game Center leaderboards and achievements
• On-device AI tutor adjusting difficulty as you improve
• Daily routine included — subscribe monthly for full access, or buy level packs individually
• Level Packs (available separately): Jazz, Latin, Metal, Blues, Classical — 50 new levels per pack
All AI runs on your device. No cloud processing.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Stability and performance improvements.
The developer, ThePaulSmith, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Paul Smith
- Size
- 25 MB
- Category
- Music
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- SUS4 Practice Lifetime £59.99
- SUS4 All-Access £4.99
- Classical Level Pack £0.99
- Latin Level Pack £0.99
- Jazz Level Pack £0.99
- SUS4 Practice Pro Monthly £0.99
- Blues Level Pack £0.99
- Metal Level Pack £0.99
- Copyright
- © 2026 4chords Studios