ab vortEx X vs OkChorale
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ab vortEx X
This app is a stereo-only abstract spacetime designer for creating unique reverberations. It functions as an AUv3 plugin for compatible iOS hosts or as a standalone application, offering control over sound reflection spread.
- Stereo-only spatial audio algorithms
- AUv3 plugin compatibility
- Standalone application mode
- Touch screen interface
- Control over sound reflection spread
- Space, Time, Viscosity, Volumes controls
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'ab vortEx X' for iOS is a 'Light', stereo-only version of 'ab vortEx', an abstract spacetime designer for creating infinite variations of reverberations using our Spatial Audio algorithms under the hood. 'ab vortEx' for iOS comes as an AUv3 Plugin and is compatible with any iOS host that supports AUv3 (e.g. Garageband). The plugin contains a minimalist interface, compatible with Touch Screens - as you move through the screen, you can control how the algorithm works and how the reflections of the sound spread through time and space. 'ab Vortex X' also works as a stand-alone application (make sure you wear headphones or use a soundcard). 'ab vortEx X' supports Stereo signals and contains the most critical controls of 'ab Vortex' (Space, Time, Viscosity and Volumes) for providing quick ways to manipulate your sound.ab vortEx' for iOS works with Mono and Stereo signals.
OkChorale
This audio effect plugin offers stereo chorus and vibrato inspired by analog stomp boxes. It allows for modulation of delay times to create classic sound effects, with adjustable rate and depth. It can be used standalone or within compatible music production applications.
- Stereo chorus and vibrato effect
- Analog stomp box inspiration
- Adjustable modulation rate (0.1-10.0 Hz)
- Adjustable modulation depth
- Chorus and Vibrato modes
- AUv3 compatible
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OkChorale Chorus / Vibrato Plugin (AUv3) OkChorale is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic or GarageBand. Overview OkChorale is a stereo chorus / vibrato effect inspired by classic analog stomp boxes. While not intended to be a model or replica of a specific unit, the processing and features embrace a bygone era of simpler times! Both chorus and vibrato effects are achieved by modulating the time of a delayed version of the dry signal. Typically, these delay times are very short, between 5-20ms. Parameters Active - Toggles the effect On or Off. Rate - Varies the modulation LFO frequency between 0.1-10.0 Hz. Typically, chorus sounds better with slow modulation, and vibrato is more noticeable and natural with higher rates. Depth - Sets the amount of delay modulation, as a percentage of the maximum modulation delay time. Mode - Toggles between Chorus and Vibrato mode. In Vibrato mode, the base delay time is very short and no dry signal is present in the plugin's output. In Chorus mode, the delay time is longer, and the dry signal is mixed with the delayed version. When used in stereo, the left and right channel's modulation is out of phase to create a wide stereo effect. The modulation wave shape is also different, depending on the mode. In Vibrato mode, a sine wave is used. In Chorus mode, a slightly rounded, and more "analog-like" triangle wave is used. Despite the basic design and lack of features, we hope you agree that OkChorale can still sound pretty OK! If the name sounds familiar, OkChorale is a version of the OK CHORALE module developed for Voltage Modular by Waverley Instruments. For more info and support please visit: www.waverley-instruments.com/robjackson
Screenshots
Verdict
The clearest difference is price: OkChorale at $1.99 against ab vortEx X's $12.99. OkChorale also leads on update cadence (every 3 days vs every 2 months) and rating (5.0 vs 4.6). On ratings volume, 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
ab vortEx X costs $12.99 and OkChorale $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
OkChorale holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 8 and 5 respectively. Written reviews point the same way: 88% of ab vortEx X's written reviews are positive against 100% of OkChorale's.
ab vortEx X ships an update every 2 months, OkChorale every 3 days. The most recent releases landed on September 24, 2026 and October 10, 2026 respectively.
| Parameter | ab vortEx X | OkChorale |
|---|---|---|
| Price | $12.99 | $1.99 — better |
| Rating | 4.6 (8 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 87.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 8 — better | 5 |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 11 — better | 12.0 |
| Further details — not scored | ||
| Size | 7 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Alejandro Cabrera Zuniga | Rob Jackson |
Customer experience
ab vortEx X
OkChorale
In-app purchases
ab vortEx X
No in-app purchases
OkChorale
No in-app purchases









