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.

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.

Probably the most popular type of sounds used in iOS music making come from analog synthesisers. Sometimes these sounds are generated by modelling but in Waverley’s case, the factory instruments come from samples of real analog gear. On the one hand, it’s really easy to mathematically generate a perfect saw wave, but sometimes the problem is that it sounds… perfect. Analog synthesisers tend to produce less than perfect waveforms, and it’s generally agreed that’s a big part of what makes them sound “good”.

By using samples, Waverley instruments capture some of the “magic” of the real gear, without having to use CPU-intensive modelling techniques. This means you can run more instances of Waverley in your host as not only is Waverley light on CPU, it’s very efficient with memory too. As well as basic analog sounds such as saw and square wave, Waverley also has sounds with effects already applied using top-end boutique signal processors, so you might be able to find a big pad sound in Waverley that you can use in a project, without having to run a bigger / more demanding instrument going through a bunch of other effects AUs.

But Waverley isn't just about analog gear. You can expand your musical palette via purchases and free downloads from the MU Store as In-App purchases. The MU Store will include an ever expanding range of conventional, as well as "impossible" instruments that will hopefully inspire you during your music creation process.

Another usage scenario for Waverley is if you’re just sketching out an idea, perhaps on a less-capable device like your iPhone while you’re on the move. Maybe the instrument you really want to use only runs on iPad, but there’s a Waverley sound that gets you pretty close and you don’t run the risk of getting distracted with dozens of parameters or a complex UI.

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. 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.

What’s New

Version 1.6.8

• reduced download size of main app slightly - sorry it's not terribly exciting, but this has been bugging me for a while

Ratings and Reviews

4.7 out of 5
38 Ratings

38 Ratings

cmruko ,

Wow. Simple, Powerful, Sounds Amazing

Updated - So basically you get 9 AUv3 apps (as of now, new are added often) packed inside this app. Waverly AU is the single instrument, but it sounds so rich, and has several great yet inexpensive IAP. That’s because all sounds are carefully sampled from the real analog sources. The initial 50+ Presets, (more with IAP) are some common waveforms, ie. Saw, etc. and some more complex sounds as well. It sounds so full and rich, it’s great. Then there are 8 AU effects as of now, reverb, delay, filter, EQ, distortion, limiter, etc... The effects are great for shaping the AU Waverly unit into something more. It is polyphonic except for the Bass presets. I was on the fence, do I really need this, type thing, but the interface is super clean, easy to use, and understand. It sounds amazing, and you get a lot for your buck. The sounds are great for making some classic synth sounds, pads, leads, bass, etc. Some are heavily processed for some amazing atmospheres. Then some Amazing IAP Guitar, piano, strings, etc... You could build a multitimbral synth in AUM using a couple Waverly instances. Just saying. I heard the sound of the app on The Sound Test Room video, and decided for $5 (initial price) I’ll try it. I’m so glad I did. I’m definitely using these sounds in my actual songs not just for sketching ideas, or place holding. Real Quality here. All 9 included AUv3’s are great. App is also low on CPU/DSP. Amazing app with great sounds. Get it.

Codowlsky Polopumus ,

Top Notch

Imagine my surprise and delight to see a new app from this Dev last night! Imagine my glee when I saw the price tag!

Now imagine you.... sitting at home all sad because you don’t have this beautiful gem. Imagine your melancholy. Now I want you to imagine you’re no longer such a cheapass for a moment. Imagine pulling out your wallet. Imagine buying this beautiful app. Now see your melancholy fade. You no longer have to imagine because it’s real, you own it. You can play with it and be happy, right now.

Great app. Great dev. 5 hefty stars.

Rawlivic ,

Very Impressed

First of all, this is one of those apps that gives you multiple effects and a synth within in one. I love the waverley instruments, so many great sounds, very easy to play with the effects and make them your own. I love that I can use the effects anywhere. I wasn’t so sure if I would get used to the different layout than most auv3s, but I absolutely love it. They just added two new effects now too, we are at 7 apps practically for the price of one. Great dev, another great app. Don’t hesitate.

In-App Purchases

A granularly transmogrified bizarre guitar
MU Waverley Basicbass
Nothing fancy, just basic bass guitar sounds
MU Waverley Fuzzguitar
Warm and fuzzy guitar tones and textures
MU Waverley Pianoatmos
Heavily processed atmospheric piano sounds
MU Waverley Mellopiano
Mellow, but definitely not your average piano
MU Waverley Stringz
Retro string machine type instruments

App Privacy

The developer, Rob Jackson, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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