SUS4 Backing Tracks

Paul Smith · Music

Free

Independent analytics for this App Store listing. AppTracker is not affiliated with Paul Smith.

Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Oct 12, 2026
New version 1.1.2 → 1.2.0

SUS4 now speaks your language: the app is available in 50 languages. Any lifetime purchase now unlocks every SUS4 app. A clearer upgrade screen, plus fixes and polish throughout.

Sep 28, 2026
New version 1.1.1 → 1.1.2
Aug 28, 2026
New version 1.1.0 → 1.1.1

In-app purchases · US

What this app sells inside itself, grouped by kind and priced for this storefront.

Subscriptions
SUS4 Backing Tracks Pro Monthl $0.99/ month · 7-day free trial
SUS4 All-Access $4.99/ month · 7-day free trial
One-time purchases
SUS4 Backing Tracks Lifetime $9.99

Screenshots

About

A drum, bass and keys band to improvise over, in the style and key you pick. Blues, jazz ii-V-I, funk, gospel, hip-hop, Latin, R&B, reggae and more, generated on your phone, so it works with no signal. Fully on-device: no cloud, no account. Choose a style and a key, set the tempo, and play. Use Solo Me to drop a part out and play it yourself: take the bass out and you are the bass player. Write a chord progression in the editor when the library does not have the changes you need. • Tracks by style, each labeled with its key and tempo • Change key and tempo • Solo Me: mute a part and play it • A chord progression editor for other changes • Loop a section to work on it For guitarists, bassists and keyboard players learning to solo, and anyone who wants to practice with a band instead of a metronome. Pro, or SUS4 All-Access across the whole range, opens the full track library, key and tempo changes, looping and stem export. Made in the UK by working musicians. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

What's new · 1.2.0

SUS4 now speaks your language: the app is available in 50 languages. Any lifetime purchase now unlocks every SUS4 app. A clearer upgrade screen, plus fixes and polish throughout.

Details

DeveloperPaul Smith
ReleasedJun 2026
UpdatedJul 2026
Version1.2.0
Size31.1 MB
RequiresiOS 16.0 or later
Age rating4+
LanguagesEnglish
PriceFree
Categories MusicEducation
Bundle IDcom.4chordsstudios.sus4.backingtracks