Comparison

Jam vs SUS4 Backing Tracks

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Jam

Practice and play along with original backing tracks for guitar, piano, bass, and ukulele. Visualize chord progressions and musical scales on interactive fretboards and keyboards. Adjust tempo and key, and loop sections for focused practice.

Highlights
  • Original backing tracks
  • Visual chord progressions
  • Fretboard and keyboard display
  • Adjustable tempo and key
  • Looping practice sections
  • 31 musical scales
  • 140+ chords
Features
Read full description

Jam-Master helps guitar, piano, ukulele, bass plays to play and practice with high-quality original backing tracks and visual notes progression. Features : - Wide variety of original backing tracks for you to play along . You can see their live chord progression on a guitar fretboard or piano so you know the right notes to hit ! - 4 instruments supported: Guitar, Piano, Bass, Ukulele - Shift the key and tempo of any of your songs .- Loop any part of your song for better practice .- Guitar / Piano display of 31 musical scales in any key and more than more than 140 chords - All kinds of scales of Modes like Major, Minor, Dorian, Phrygian, Lydian etc Backing tracks genres : Rock, Blues, Metal, Ambient, Jazz etc Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SUS4 Backing Tracks

Features
Read full description

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/

Screenshots

Jam4 screens
SUS4 Backing Tracks4 screens

Verdict

The call

The clearest difference is ads: SUS4 Backing Tracks at none against Jam's shown. SUS4 Backing Tracks also leads on update cadence (fortnightly vs every 2 months). Jam's advantage is iOS requirement (14.0 vs 16.0). On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Jam sells 2 in-app purchases, starting at $4.99 per 7 days and SUS4 Backing Tracks sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Jam ships an update every 2 months, SUS4 Backing Tracks fortnightly. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 6 level
Jam versus SUS4 Backing Tracks: the parameters behind the verdict, then further details
ParameterJamSUS4 Backing Tracks
PriceFreeFree
Rating4.8 (6 ratings) — better—
Number of ratings6 — better—
Update frequencyEvery 2 monthsFortnightly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS14.0 — better16.0
Further details — not scored
Size22 MB45 MB
Age rating4+4+
Developer群 丁ThePaulSmith

In-app purchases

2 purchases

Jam

Subscriptions2
  • Subscribe Weekly$4.997 Days
  • Subscribe Monthly$17.991 Month
3 purchases

SUS4 Backing Tracks

Subscriptions2
  • SUS4 Backing Tracks Pro Monthl7 Days trial$0.991 Month
  • SUS4 All-Access7 Days trial$4.991 Month
One-time1
  • SUS4 Backing Tracks Lifetime$59.99

Questions

Is Jam free?
Jam is free to download, with in-app purchases available.
Is SUS4 Backing Tracks free?
SUS4 Backing Tracks is free to download, with in-app purchases available.
Do Jam or SUS4 Backing Tracks have ads?
Jam shows ads; SUS4 Backing Tracks does not.
Which is updated more often, Jam or SUS4 Backing Tracks?
Jam ships an update every 2 months, and SUS4 Backing Tracks fortnightly. Most recently, Jam was updated on October 14, 2026 and SUS4 Backing Tracks on October 19, 2026.

Other comparisons