Comparison

moodunits vs Copperhead

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

Head to head
About

moodunits

This app provides a collection of instrument and effect Audio Units for music production. It is not a standalone application but integrates with AUv3 compatible hosts like GarageBand and AUM on iOS devices.

Highlights
  • Sample-based instrument (Waverley)
  • 30 factory sounds with tweakable parameters
  • Basic audio effects (delay, reverb, EQ, etc.)
  • Light on CPU usage
  • Access to PDF user guide
  • MU Store for additional downloads
Features
Currently charting
Read full description

Please note: moodunits have been designed as a set of instrument and effect Audio Units. You need to load moodunits into any AUv3 compatible host application running on iPad or iPhone, such as GarageBand or AUM. The moodunits app is not a standalone instrument. *** Please note that this app is now in maintenance / bug fixes only mode as it relies on "deprecated" (by Apple) technology such as hosting *new* IAP downloads. Existing IAPs should work / download OK *** More about moodunits... Waverley is the principal instrument in the moodunits collection. It’s sample-based, but it isn’t a fully-fledged sampling app that allows you to load and edit your own samples. There are already great apps out there that allow you to do that. Waverley in moodunits is pre-loaded with 30 factory sounds, that can be tweaked to taste via parameters that will hopefully be familiar to most of you. However, don’t worry if some parameter names look technical or scary - just experiment! You can’t really “break” Waverley or make “bad” sounds with it. moodunits also comes with some basic effects, allowing you to create a great sounding musical project using just moodunits and your favourite AU host. In keeping with the moodunits design principal, the effects are light on CPU and expose a few essential parameters. They're probably not going to replace your favourite bells and whistles mega reverb or delay, but their simplicity might come as a refreshing change. Currently these effects include a delay, reverb, low-pass filter, 10-band EQ, peak limiter and distortion. Please note: The moodunits app is not a standalone instrument, but can be used to access a detailed PDF user guide and the MU Store for additional downloads. Once you run the app, your moodunits are registered on your device and are ready to be used for music projects in your AU host of choice. For instructions on how to use Audio Units, please refer to relevant documentation for your host, e.g. GarageBand or AUM, etc. Note for advanced users: with the exception of the filter cutoff frequency and resonance in the filter AU, none of the parameters are exposed for automation. Also, please note that the design goals for moodunits is focussed on ease of use, so some advanced users may find the features basic. The screenshots and demo videos online should give you a good idea of what's possible. If in doubt, please ask.

About

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.

Highlights
  • AUv3 compatible
  • Multi-note polyphony
  • Integrated arpeggiator
  • Customizable waveforms
  • Integrated audio effects
  • 32-step sequencer
  • Preset Manager
Features
Read full description

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.

Screenshots

moodunits4 screens
Copperhead4 screens

Verdict

The call

The clearest difference is price: moodunits at $2.99 against Copperhead's $14.99. moodunits also leads on update cadence (every 5 days vs every 3 weeks) and chart position (#193 vs unranked). Copperhead's advantage is in-app purchases (none vs 12) and rating (4.7 vs 4.5). On ratings volume, ads, device support and iOS requirement 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

moodunits costs $2.99 and Copperhead $14.99 up front. moodunits sells 12 one-off in-app purchases. Copperhead asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Copperhead holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 48 and 18 respectively. Written reviews complicate that: 92% of moodunits's written reviews are positive against 83% of Copperhead's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

moodunits ships an update every 5 days, Copperhead every 3 weeks. The most recent releases landed on September 7, 2026 and September 3, 2026 respectively.

Scorecard7 real differences · 4 level
moodunits versus Copperhead: the parameters behind the verdict, then further details
ParametermoodunitsCopperhead
Price$2.99 — better$14.99
Rating4.5 (48 ratings)4.7 (18 ratings) — better
Positive reviews92.3% of reviews — better83.3% of reviews
Number of ratings48 — better18
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#193 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size23 MB69 MB
Age rating4+4+
DeveloperRob Jackson4Pockets.com

Customer experience

moodunits

All ratings48 ratings
Positive89.6%
Neutral2.1%
Negative8.3%
Written reviews39 reviews
Positive92.3%
Neutral2.6%
Negative5.1%

Copperhead

All ratings18 ratings
Positive94.4%
Neutral0.0%
Negative5.6%
Written reviews18 reviews
Positive83.3%
Neutral11.1%
Negative5.6%

In-app purchases

12 purchases

moodunits

One-time12
  • MU Waverley MobassFree
  • MU Waverley FactoryFree
  • MU Waverley ScapersFree
Show 9 more
  • MU Waverley MegaPortaPadFree
  • MU Waverley ARCFree
  • MU Waverley ESCFree
  • MU Waverley GRANALOGFree
  • MU Waverley Stringz$0.99
  • MU Waverley Mellopiano$0.99
  • MU Waverley Pianoatmos$0.99
  • MU Waverley ATMOSPADZ$0.99
  • MU Waverley Evoebo$0.99
None

Copperhead

No in-app purchases

Questions

Is moodunits free?
moodunits costs $2.99, and also offers in-app purchases.
Is Copperhead free?
Copperhead costs $14.99, with no in-app purchases.
Which has better reviews, moodunits or Copperhead?
Copperhead is rated higher. moodunits averages 4.5 out of 5 from 48 ratings, while Copperhead averages 4.7 from 18 ratings.
Do moodunits or Copperhead have ads?
Neither moodunits nor Copperhead shows ads.
Which is updated more often, moodunits or Copperhead?
moodunits ships an update every 5 days, and Copperhead every 3 weeks. Most recently, moodunits was updated on September 7, 2026 and Copperhead on September 3, 2026.

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