Comparison

4 Tracks LX vs Quantiloop

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

Head to head
About

4 Tracks LX

This multitrack digital audio workstation allows you to record, mix, and share complete songs on your iPhone. It offers high-quality recording, a built-in synthesizer, and the ability to load audio files and loops for on-the-go music creation.

Highlights
  • Multitrack digital recording
  • Integrated synthesizer
  • Load audio files and loops
  • CD-Quality Recording (16 bit, 44.1 kHz)
  • Metronome for time-perfect recordings
  • Mixdown tracks
  • Share complete songs
Features
Read full description

4 Tracks is the original multitrack digital recording studio for the iPhone. Simple to use and very light, this is the audio tool that you can always have with you. We worked hard to bring you the best sound quality and the lowest latency possible on device. 4 Tracks focuses on features that are useful and quick to access on a mobile device, you can create and share a complete song in a few steps. Create on the go and make it to the charts ! It was used to create full albums ( including Chris Price's Homesick). Features of the unlocked version : - Mixdown your tracks - Integrated synthesizer - Loads audio files and loop (AIFF, WAV, loops)! - CD-Quality Recording 16 bit, 44.1 kHz - Metronome allows you to create time perfect recordings (60 to 200) bpm - Monitoring - Save and manage your tracks using a clean interface

About

Quantiloop

This app offers a powerful 4-track live looping experience for musicians, replicating hardware loop pedals on iOS. It supports hands-free operation with MIDI controllers or automated recording, allowing for complex musical arrangements and creative effects.

Highlights
  • 4-track live looping
  • Hands-free MIDI control
  • Unlimited overdubs
  • Built-in rhythm guide
  • Assignable FX
  • Ableton Link synchronization
Features
Read full description

Built for Live performance and hands free use, Quantiloop recreates the simplicity of a hardware loop pedal in an iOS app. Attach a MIDI foot controller and control it the way you want. No MIDI controller at hand; just preset your loop length, enable auto–record or a count–in and your loops will automatically close, no hands or feet required. Big onscreen controls allow for easy configuration and tactile control by vocalists or beat boxers. Focus on your performance instead of fiddling with dip switches or complex menu’s. Be Creative Create 4 tracks with endless layers of overdubs to build your performance. Record a Chorus, Verse and Bridge and switch between them seamlessly or create a 1 bar percussie loop on track one, a 4 bar chord progression on track two and layer a bass line on top, all in perfect synchronisation. Rhythm Guide The builtin rhythm guide provides a rhythmic backing. Use the internal metronome for practice, import drum loops from virtually anywhere or host and control your favourite rhythm apps to enhance your performance. MIDI master lets you control MIDI hardware, and MIDI slave lets Quantiloop follow it. Ableton Link lets you even play in time over WiFi with external apps and devices. Quantisation aligns your actions to the nearest measure or beat so you stay in time, and real-time tempo control sets the pace. Prefer setting your own pace, disable quantisation and Quantiloop will react to your actions with minimum latency to create tight synchronised recordings. FX Assign up to 3 simultaneous effects to the input. Use the built-in transpose to covert your guitar into a bass, or host your guitar amp sim directly in Quantiloop. The results will be recorded into your loops. Or assign up to 3 simultaneous track effects to the output. Use the tape stop to add drama, introduce a key change to build up your performance, or host an Inter-App audio/AU reverb processor. Track FX may be assigned to a single track, all tracks or the combined output. Features • Free, Synced and Paralel,Serial, Mixed Playing Styles • Multiple Quantise Modes • Multiple Stop Modes • Unique Dub Mode and Mute Mode • Unlimited Overdubs • Overdub Decay • Undo / Redo • Auto Record • High quality stereo audio • Clear loop status display • Rhythm guide with optional auto-start, auto-stop and count-in • Audible and Visual Metronome • Send start, stop and host sync to hosted rhythm apps. • Sync to host when embedded in an Inter-App-Audio host • Real-time Tempo Control • Extensive MIDI control (*) • Multiple Assignments per MIDI controller (tap, hold, double tap) • MIDI Program Change support for changing presets • Supports Audiobus and Inter-App-Audio and Audio Units (AUv3) • Individual outputs for each track and rhythm • Synchronise to other apps and devices with Ableton Link (*) • MIDI clock sync (both slave and master) (*) • 4 physical/iaa/au/audiobus inputs routable to any track (*) • 8 outputs (main, monitor, track 1-4, rhythm, input out) (*) • 3 assignable input Fx, including transpose, reverb and IAA, AUv3 ((*) • 3 assignable track Fx, including transpose, reverse, tape stop, fade and IAA, AUv3 (*) • Cloud (iCloud, Dropbox, Audioshare …) import / export • AudioCopy/Paste • Open In • Store Phrase Presets in unlimited banks with 100 presets each (Requires Pro) • Individual Volume and panning controls for each track (*) Functionality partially available in this free version. Pro Upgrade required to unlock full functionality

Screenshots

4 Tracks LX3 screens
Quantiloop4 screens

Verdict

The call

The clearest difference is rating: Quantiloop at 3.0 against 4 Tracks LX's 2.2. Quantiloop also leads on review sentiment (56% vs 44%) and ratings volume (38 vs 10). On price, update cadence, ads and in-app purchases 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. 4 Tracks LX sells 1 one-off in-app purchase and Quantiloop sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Quantiloop holds the better App Store score, 3.0 against 2.2. Both are backed by a comparable volume of ratings — 10 and 38 respectively. Written reviews point the same way: 44% of 4 Tracks LX's written reviews are positive against 56% of Quantiloop's.

UpkeepUpdate frequency

4 Tracks LX ships an update every 5 months, Quantiloop every 3 months. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
4 Tracks LX versus Quantiloop: the parameters behind the verdict, then further details
Parameter4 Tracks LXQuantiloop
PriceFreeFree
Rating2.2 (10 ratings)3.0 (38 ratings) — better
Positive reviews43.8% of reviews56.5% of reviews — better
Number of ratings1038 — better
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.612.0 — better
Further details — not scored
Size20 MB16 MB
Age rating4+4+
DeveloperLittleCodeShop.comStephan Marx

Customer experience

4 Tracks LX

All ratings10 ratings
Positive20.0%
Neutral20.0%
Negative60.0%
Written reviews32 reviews
Positive43.8%
Neutral9.4%
Negative46.9%

Quantiloop

All ratings38 ratings
Positive50.0%
Neutral2.6%
Negative47.4%
Written reviews62 reviews
Positive56.5%
Neutral1.6%
Negative41.9%

Bugs and requests

4 Tracks LX

Not enough reviews yet to summarise bugs or requests.

Quantiloop

Reported bugs

10 issues
  • Voice message interrupts loops
  • App closes on launch (iPad mini 2)
  • Random tempo fluctuations
  • Buttons not appearing on iPhone mini 13
  • Pro status lost after app offload
Show 5 more
  • Drums/guitar FX not loading properly
  • Occasional glitch/stutter
  • App immediately shuts down after opening
  • Crashing on iPad Mini 3
  • Trial expired message confusing

Requested features

7 requests
  • Add slicer effect
  • Save old phrase + FX settings
  • Add record button to audio file
  • Support split screen on iPad Pro
  • Provide instruction manual in Russian
Show 2 more
  • Fix issues with SONOMA on M1 Macs
  • Allow trying Pro features with interruptions

In-app purchases

1 purchases

4 Tracks LX

One-time1
  • Essential tools$7.99
2 purchases

Quantiloop

One-time2
  • Pro (7 Day Trial)Free
  • Pro Upgrade$14.99

Questions

Is 4 Tracks LX free?
4 Tracks LX is free to download, with in-app purchases available.
Is Quantiloop free?
Quantiloop is free to download, with in-app purchases available.
Which has better reviews, 4 Tracks LX or Quantiloop?
Quantiloop is rated higher. 4 Tracks LX averages 2.2 out of 5 from 10 ratings, while Quantiloop averages 3.0 from 38 ratings.
Do 4 Tracks LX or Quantiloop have ads?
Neither 4 Tracks LX nor Quantiloop shows ads.
Which is updated more often, 4 Tracks LX or Quantiloop?
4 Tracks LX ships an update every 5 months, and Quantiloop every 3 months. Most recently, 4 Tracks LX was updated on October 17, 2026 and Quantiloop on October 15, 2026.

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