lfoch vs PhaseII
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
PhaseII
This audio effect plugin offers a dual stereo phaser with a vintage sound. It allows for independent phasing engines in parallel or series, with selectable modes for subtle to extreme effects. Controls include rate, depth, width, drive, and mix for versatile sound shaping.
- Dual stereo phasing engines
- Parallel and series processing modes
- Selectable effect modes (subtle to extreme)
- Adjustable rate, depth, and width
- Optional drive for analog warmth
- Soft limiting to prevent clipping
- Mix control for wet/dry balance
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PhaseII Dual Stereo Phaser Plugin (AUv3) PhaseII is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic Pro, GarageBand or AUM. Overview PhaseII is a dual stereo phasing machine with a vintage vibe! As well as traditional super-wide stereo phasing effects, PhaseII can also produce all manner of swirly modulated goodness by running the independent phasing engines in parallel or series. Selectable modes allow quick access to finely-tuned settings under the hood that "just work", from subtle to extreme - just the thing if you find some phasers to be overly complex with too many parameters! Set Rate and Depth to taste, adjust the stereo Width, then you can even add some gritty Drive for some "analog" warmth. Controls Active - Bypasses the effect (Off) or selects one of the following processing modes: Stereo - Two independent phasers for the left and right channel, with LFOs 90 degrees out of phase for a stereo effect, determined by the Width control. Parallel - Two independent stereo phasers for the incoming audio, which are then summed together at the output stage. The LFOs for each of the four phasers are 90 degrees out of phase for a stereo effect, determined by the Width control. Series - Two independent stereo phasers with Phase I processing incoming audio, which is then passed on to Phase II for a double-helping of phasey goodness at the output stage! This is potentially the most dramatic phasing effect, especially with the Width set to maximum as each of the four phaser LFOs are 90 degrees out of phase. The following controls apply to each phase stage, referred to as Phase I or Phase II: Phase I/II - Toggles the Phase I or Phase II processing engine On or Off. Rate - Sets the rate of the phaser LFO in Hz. Depth - Sets the depth of the phase effect. Mode - Selects one of four different modes. Each mode configures several "under the hood" settings - think of each mode as a mini preset for internal parameters. Modes range from subtle (I) to extreme! (IV). The following controls are global: Width - Adjusts the stereo width from super-wide to monophonic. Note this only adjusts the "wet" phased sound so your original stereo image remains intact for the "dry" signal. Drive - Applies an optional amount of warm overdrive to the phaser processing only, for a bit of a vintage vibe! Mix - Balances the processed audio with the incoming / dry signal. At zero, the output is totally dry, and at 100%, the output is totally wet and phased to the max! The phasing effect can sometimes create loud resonant frequency peaks that could result in clipping. To protect against this, soft limiting is applied at both the phasing processing stage and at the final summed output. If the input levels are high, this can add to the "analog" like sound of PhaseII when compression and saturation occurs. About The UI Not everyone likes the UIs of my latest (2025) plugins - I get it. However, the simplistic and generic approach allows me to (a) 99% focus on the DSP, sound quality and CPU performance, and (b) significantly reduce the development (and potential maintenance) time, which is reflected in my pricing. For more info and support please visit: www.waverley-instruments.com/robjackson
Screenshots
Verdict
The clearest difference is review sentiment: PhaseII at 100% against lfoch's 50%. PhaseII also leads on rating (5.0 vs 4.4) and update cadence (every 9 days vs every 20 months). lfoch's advantage is ratings volume (9 vs 2). On ads, in-app purchases, monetization model 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
lfoch costs $3.99 and PhaseII $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PhaseII holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews point the same way: 50% of lfoch's written reviews are positive against 100% of PhaseII's.
lfoch ships an update every 20 months, PhaseII every 9 days. The most recent releases landed on September 28, 2026 and October 15, 2026 respectively.
| Parameter | lfoch | PhaseII |
|---|---|---|
| Price | $3.99 | $1.99 — better |
| Rating | 4.4 (9 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 9 — better | 2 |
| Update frequency | Every 20 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexey Nadzharov | Rob Jackson |
Customer experience
lfoch
PhaseII
In-app purchases
lfoch
No in-app purchases
PhaseII
No in-app purchases








