Comparison

Quantum Sequencer vs lfoch

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

Head to head
About

Quantum Sequencer

This app offers an interactive approach to music composition, focusing on detailed steps that can be arranged into looping sequences. It provides extensive control over note parameters and allows for real-time manipulation and experimentation.

Highlights
  • Interactive step-focused composition
  • Detailed step notation (probability, ornamentation)
  • Configurable sequence lengths and sub-sequences
  • 16 general faders for parameter editing
  • MIDI learnable faders
  • Programmable loop actions
  • Per-sequence MIDI FX, devices, and controllers
Read full description

Quantum is a performance midi sequencer which approaches music composition with an interactive creation processes - sometimes referred to as 'noodling'. Where pattern or piano-role sequencers are good for music forms (intro/verse/chorus etc) or grid entry, Quantum's approach is built around the idea of a step being the focus - think of the step as a single note or chord written on a music sheet then add a lot of extra notation (like probability of playing or ornamentation say). These highly detailed steps are then aligned into sequences (think melodies) that loop. You can have any length up to 64, but these can be further split into 4 sub-sequences that have their own set of sequencer parameters (like tempo, play direction, transpose etc). To enter step parameters such as note pitch, velocity, gated length etc, 16 general faders are available which allow you to draw, drag, select copy/paste, inc/dec & link together to edit values. These are also midi learnable (midi cc or nrpn) to allow you to use control surfaces or midi controllers. To aid you with faster control Quantum has loop actions which you can program in to carry out tasks when a sequence loops - e.g. transpose, randomise, start or load another sequence etc. With up to 24 sequences playing Quantum introduces a mixer page allowing you to blend midi velocities. Built on the MidiSequencer engine, midi FX, devices & Controllers are now possible per sequence. So why would Quantum be good for your setup? There are many midi enabled IOS & hardware synths that produce exotic timbres if you send them fast & varied midi controls that you just would not hear with keyboard playing or slow tempo tunes. Also, Quantum, embraces experimentation in melody creation and by copy/pasting allowing quick setup of arpeggios & counterpoint tunes that you can create & manipulate on the fly! note : This app sends midi information - you need to use it in conjunction with any midi enabled iOS synth app (e.g. Sunrizer) to hear sounds

About

lfoch

This app generates complex LFO waveforms with multiple outputs for creating "chase" effects. It offers two LFO generators with phase modulation, adjustable suboscillators, and waveform morphing. It can output MIDI control change values and sync to tempo.

Highlights
  • Dual LFO generators with phase/ring modulation
  • Suboscillator modulation with waveform morphing
  • Adjustable waveform rate, type, and range
  • Output 1-16 MIDI control change values
  • Tempo synchronization and AUv3 MIDI Effect support
  • Two modes: 'perform' and 'edit'
  • Randomize parameter values
Features
Read full description

lfoch is an experimental LFO generator that can create "chase"-like effect with multiple outputs from a single complex waveform It features: - 2 LFO generators with phase modulation / ring modulation: - Each LFO generators contains 2 suboscillators; one suboscillator modulates phase of another - For each suboscillator you can set waveform rate, waveform type (with smooth morph between sine, triangle, sawtooth and square waveforms), nonlinear curve (for overdrive-like effect) and minimum/maximum range - The result waveform is a multiplication of two generated LFO waveforms - You can use 1..16 points from this waveform to output as MIDI control change values - You can toggle the "playback" (phase change) of each generator with I/II buttons - You can randomise parameter values with "dice" buttons - App has two modes for live usage - 'perform' mode has larger waveform view and some selected sliders (if any) - 'edit' mode contains all controls on one screen - Each generator can be synchronized to tempo. In this mode the "speed" value runs from 4 quarter forward to 4 quarter backwards speed, the fastest value in this mode is 1/32 - When running inside AUv3 host the app uses host's transport. - "free mode" setting allows you not to follow the host transport lfoch is a standalone app and an AUv3 MIDI Effect. AUv3 effect supports parameter automation and preset saving inside host. Standalone version currently does not output MIDI in background mode.Note for AUM users:This application starts with 16 control change outputs from CC 0 to 15 on MIDI channel 1. AUM has default mapping of the CC #7 (volume) for each channel. Please keep this in mind when setting it up together.

Screenshots

Quantum Sequencer4 screens
lfoch4 screens

Verdict

The call

The clearest difference is update cadence: Quantum Sequencer at every 6 weeks against lfoch's every 20 months. Quantum Sequencer also leads on review sentiment (69% vs 50%) and ratings volume (35 vs 9). lfoch's advantage is price ($3.99 vs $7.99). On rating, ads, in-app purchases and monetization model 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

Quantum Sequencer costs $7.99 and lfoch $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Quantum Sequencer against 4.4 for lfoch. Both are backed by a comparable volume of ratings — 35 and 9 respectively. Written reviews are what separate them: 69% of Quantum Sequencer's written reviews are positive against 50% of lfoch's.

UpkeepUpdate frequency

Quantum Sequencer ships an update every 6 weeks, lfoch every 20 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Quantum Sequencer versus lfoch: the parameters behind the verdict, then further details
ParameterQuantum Sequencerlfoch
Price$7.99$3.99 — better
Rating4.6 (35 ratings) — better4.4 (9 ratings)
Positive reviews68.8% of reviews — better50.0% of reviews
Number of ratings35 — better9
Update frequencyEvery 6 weeks — betterEvery 20 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size191 MB8 MB
Age rating4+4+
Developeranthony saundersAlexey Nadzharov

Customer experience

Quantum Sequencer

All ratings35 ratings
Positive88.6%
Neutral2.9%
Negative8.6%
Written reviews32 reviews
Positive68.8%
Neutral9.4%
Negative21.9%

lfoch

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

In-app purchases

None

Quantum Sequencer

No in-app purchases

None

lfoch

No in-app purchases

Questions

Is Quantum Sequencer free?
Quantum Sequencer costs $7.99, with no in-app purchases.
Is lfoch free?
lfoch costs $3.99, with no in-app purchases.
Which has better reviews, Quantum Sequencer or lfoch?
Quantum Sequencer is rated higher. Quantum Sequencer averages 4.6 out of 5 from 35 ratings, while lfoch averages 4.4 from 9 ratings.
Do Quantum Sequencer or lfoch have ads?
Neither Quantum Sequencer nor lfoch shows ads.
Which is updated more often, Quantum Sequencer or lfoch?
Quantum Sequencer ships an update every 6 weeks, and lfoch every 20 months. Most recently, Quantum Sequencer was updated on November 2, 2026 and lfoch on November 3, 2026.

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