Copperhead vs OkChorale
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Copperhead
This digital synthesizer plugin offers a vintage 80's sound with modern features like multi-note polyphony, an arpeggiator, and integrated audio effects. Design custom waveforms, explore various modulation options, and utilize a powerful sequencer to craft unique sounds.
- AUv3 compatible
- Multi-note polyphony
- Integrated arpeggiator
- Customizable waveforms
- Integrated audio effects
- 32-step sequencer
- Preset Manager
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Copperhead is an AUv3 digital subtractive synthesizer plugin which draws its influence from the vintage synthesizers of the early 80's. Only now we have multi-note polyphony, a build in arpeggiator, and a host of integrated audio effects. Copperhead features a custom String Machine, the ability to design your own custom waveforms, as well as supporting oscillator sync and various cross modulation effects. Cross modulation is a type of FM synthesis which can be used to morph simplistic waveforms into something far more aggressive and interesting. At the heart of Copperhead are its two oscillators, which support all your traditional waveforms (SINE,SQR,SAW,TRI), as well as SuperSaw, Trapezium, and other user definable types. The app features pulse width modulation and supersaw, as well as a customisable string engine and the ability to create your own oscillator types. The Voltage Controller Filter supports the usual LP, HP, BP and Notch filters in series or parallel configuration, as well as a couple of unusual ones like Formant which allows you to sweep your cutoff to create interesting vowel sounds. Copperhead also features twin LFO's with random and one shot functionality. It also supports Cross, Ring and FM modulators, in addition to low and high shelf filters. One of the great features is the integrated audio gate, which allows you to generate stuttering audio right out of the box. Combined with effects such as Chorus, Overdrive, Delay, Reverb and Auto Pan / Tremelo, and the ability to specify effect order, you have a lot of control over your sound. If that wasn't enough, we also include a 32 step sequencer, with various mono and poly modes with direct control control of various synth elements. We have a built in Preset Manager which groups presets into banks and groups, which supports drag and drop for easy import/export of presets. You can also access your favourites from a special popup menu, or via the built in quick search facility. Copperhead now ships with over 550 presets which cover just about every instrument category you would ever need. ○ AUv3 compatible. ○ Up to 16 note polyphony. ○ 7 Oscillator wave types. ○ Sub Oscillator. ○ PW/PWM on SQR and TRP waveforms. ○ Supports SuperSaw with MIX and DETUNE. ○ XMod / Ring and FM modulations. ○ Osc Sync. ○ 6 types of VCF filter. ○ Low and High shelf on output. ○ Built in compressor. ○ Chorus, Delay, Overdrive, Reverb and Auto Pan effects. ○ Built in Audio Gate. ○ Preset Manager with Bank/Group/Preset section. ○ Supports drag and drop to import/export presets, groups and banks. ○ Supports web transfer of presets. ○ 32 step arpeggiator. ○ More than 550 built-in presets. NOTE: This is an AUv3 plugin which was designed to be hosted in DAW's such as AUM, Cubasis, GarageBand, Loopy Pro etc.
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 Copperhead's $14.99. OkChorale also leads on update cadence (every 3 days vs every 3 weeks) and rating (5.0 vs 4.7). Copperhead's advantage is ratings volume (18 vs 5). 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
Copperhead costs $14.99 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 4.7. Both are backed by a comparable volume of ratings — 18 and 5 respectively. Written reviews point the same way: 83% of Copperhead's written reviews are positive against 100% of OkChorale's.
Copperhead ships an update every 3 weeks, OkChorale every 3 days. The most recent releases landed on September 3, 2026 and August 25, 2026 respectively.
| Parameter | Copperhead | OkChorale |
|---|---|---|
| Price | $14.99 | $1.99 — better |
| Rating | 4.7 (18 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 83.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 18 — better | 5 |
| Update frequency | Every 3 weeks | 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 | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | 4Pockets.com | Rob Jackson |
Customer experience
Copperhead
OkChorale
In-app purchases
Copperhead
No in-app purchases
OkChorale
No in-app purchases
Questions
Is Copperhead free?
Is OkChorale free?
Which has better reviews, Copperhead or OkChorale?
Do Copperhead or OkChorale have ads?
Which is updated more often, Copperhead or OkChorale?
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