Comparison

Jam Lab 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 Lab

This music creation tool helps musicians generate chord progressions, build song structures, and train their ear. It offers modes for quick idea generation or in-depth song writing, with features for practicing grooves and exporting musical ideas.

Highlights
  • Generate chord progressions
  • Build song structures
  • Practice grooves
  • Ear training exercises
  • Export to MIDI/MusicXML/Audio
  • Explore scales and modes
  • Generate lyric ideas
Features
Read full description

Jam Lab helps musicians create chord progressions, build song ideas, practise grooves, train their ear, and get inspired before the next jam. Whether you are practising at home, writing a song, preparing a rehearsal, or starting a jam session with friends, Jam Lab gives you musical ideas to play with in seconds. EASY MODE Start quickly with a simple 4-chord progression. Tap the Jam button and let the wheel suggest creative constraints for your jam: genre, rhythm, tempo range, playing idea, and more. You can also loop the generated progression over a simple groove to practise at home. ADVANCED MODE Unlock deeper tools for writing, practising, and experimenting: * Generate chord progressions in any key, scale, or mode * Explore more than 100 scales and modes * See the available chords in the selected scale * Create sections such as Verse, Chorus, Bridge, A, B, and more * Build full song structures and timelines to generate chords on * Choose the harmonic richness of generated chords * Lock the bars you like and regenerate the rest * Replace individual chords manually * Try modal substitutions * Jam along with more than 50 grooves, including odd time signatures * Set your tempo and add shuffle for a swing feel CADENCES Explore a collection of common and less common chord progressions, or create and save your own. Use the same groove and tempo tools to practise cadences, turnarounds, and harmonic movements in different contexts. SONGS Create songs from start to finish. Build sections, organize your structure, add custom drum backing tracks with the Groove Machine, and prepare set lists for your gigs or rehearsals. EAR TRAINING Improve your musical ear by practising interval and chord recognition. Train yourself to recognize sounds more quickly, so you can react better when improvising, composing, or jamming with other musicians. VOICE Generate creative suggestions for lyrics and vocal improvisation. Get words to include, themes to write or sing about, techniques to try, and rhythm or onomatopoeia ideas for improvised solos. EXPORT Export chord progressions to MIDI, MusicXML, and audio, so you can create backing tracks, continue working in your DAW, or share ideas with other musicians. Jam Lab is designed as a creative laboratory for musicians: generate, experiment, practise, save your best ideas, and jam on. Jam Lab offers a one-time unlock. No subscription is required.

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

Jam Lab4 screens
SUS4 Backing Tracks4 screens

Verdict

The call

The clearest difference is in-app purchases: Jam Lab at none against SUS4 Backing Tracks's 10. Jam Lab also leads on update cadence (every 6 days vs every 2 weeks). On price, ads, device support and iOS requirement 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. SUS4 Backing Tracks sells 10 in-app purchases, starting at $0.99 per month. Jam Lab asks for nothing beyond the download.

UpkeepUpdate frequency

Jam Lab ships an update every 6 days, SUS4 Backing Tracks every 2 weeks. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 8 level
Jam Lab versus SUS4 Backing Tracks: the parameters behind the verdict, then further details
ParameterJam LabSUS4 Backing Tracks
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 6 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.6 — better16.0
Further details — not scored
Size402 MB46 MB
Age rating4+4+
DeveloperJulien MaroccoThePaulSmith

In-app purchases

None

Jam Lab

No in-app purchases

10 purchases

SUS4 Backing Tracks

Subscriptions8
  • SUS4 Backing Tracks Pro Monthl7 Days trial$0.991 Month
  • SUS4 All-Access7 Days trial$4.391 Month
  • SUS4 All-Access7 Days trial$5.991 Month
Show 5 more
  • SUS4 All-Access7 Days trial$7.991 Month
  • SUS4 All-Access Annual7 Days trial$19.991 Year
  • SUS4 All-Access Annual7 Days trial$26.991 Year
  • SUS4 All-Access Annual7 Days trial$35.991 Year
  • SUS4 All-Access Annual7 Days trial$51.991 Year
One-time2
  • SUS4 Backing Tracks Lifetime$54.99
  • SUS4 Backing Tracks Lifetime$103.99

Questions

Is Jam Lab free?
Jam Lab is free to download, with no in-app purchases.
Is SUS4 Backing Tracks free?
SUS4 Backing Tracks is free to download, with in-app purchases available.
Do Jam Lab or SUS4 Backing Tracks have ads?
Neither Jam Lab nor SUS4 Backing Tracks shows ads.
Which is updated more often, Jam Lab or SUS4 Backing Tracks?
Jam Lab ships an update every 6 days, and SUS4 Backing Tracks every 2 weeks. Most recently, Jam Lab was updated on November 8, 2026 and SUS4 Backing Tracks on November 9, 2026.

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