Granular synth app recommendations?

[themagicalkamja]

I'm an avid consumer of iPad synthesizers, which get more and more sophisticated and awesome every year. These days I've gotten really into designing drone patches, and I imagine granular synthesis is perfect for that. So now I'm in the market for a granular synth.

Does anyone here have experience with any iOS granular synths that impressed you or that you enjoy? Ones I've heard of but know nothing about include Borderlands, iDensity, csGrain, GrainProc, Grain Science, iPulsaret, and Sylo... Am I missing any?

Things that I really value in a synthesizer, in this order, are:

• 1. sound quality
  2. flexibility/modularity (the more modular the better, for drones!)
  3. general attractiveness and workflow
  4. FX quality
  5. sample import (for granular synths only)

Extra points if it can also works as an audio effects processor in Audiobus 3

[Dasheesh]

At the moment grainular is really just getting HOT. Developers haven't touched it much but it will be the new wave table in a few years is my guess. The biggest problem is that it is a resource HOG so developers are trying tricks like making only a few grains and feeding them through delay lines to compensate. Probably the best grainulars at the moment are Native Instruments Reaktor ensembles regrettably. lately I've been on the search and unless you are willing to play with dongs the offerings are sparse for quality grainular. Have a look at http://www.newsonicarts.com/html/granite.php . I've been wondering why I haven't given it more attention.

[Dasheesh]

Oh you are looking IOS instruments...LoL, my fault. Grain science was probably the first and the one I've heard the most about.

[themagicalkamja]

Oh you are looking IOS instruments...LoL, my fault.

Lol, no prob. Should have made it clearer.

Grain science was probably the first and the one I've heard the most about.

What have you heard about it? Have you used it at all? I personally think it's kinda ugly, but I could definitely overlook that if it offers the kind of flexibility I'm looking for.

[Dasheesh]

I was traveling with an iPad back when iPad 1 was realeased and buying all the synth apps that first hit the stores. I was sure it was going to be the norm in a few years at the time. As long as you feed it through a good live mixer it sounds great. Grain science was the first one that I remember hitting the market and it's still going strong and highly rated so it's being supported well. If I were going to buy one for IOS that's where I would start on reputation. That's all I know.

[themagicalkamja]

Cool, I'll take that into consideration. Thanks!

[Cinebient]

My fav on iOS would be borderlands but it's a very different thing from other granular synths.
There are some interesting you-tube videos.
It's a very unique tool which i doesn't saw in this way elsewhere (also desktop) and is great on a multi-touch screen.
I like GrainScience but like Mitosynth from the same developer much more.
Not granular specific but check out this app for great ambient, drone and atonal stuff:

Or Shoom is great too. They can do microtonal sounds which i find important for drone stuff.
But Synthscaper is my new prefered tool for this stuff on iOS followed by Mitosynth.
(Sadly can't use Shoom since it's iPad only and i use only iPhone now for iOS).

[themagicalkamja]

My fav on iOS would be borderlands but it's a very different thing from other granular synths.

What about it is so different from other granular synths?

But Synthscaper is my new prefered tool for this stuff on iOS.

I actually only just stumbled upon SynthScaper yesterday. Surprisingly I've never heard of it, but it, along with SoundScaper and FieldScaper, it looks pretty cool. I don't 100% get what it is though. FieldScaper and SoundScaper are both sample-based, I think - is SynthScaper also sample-based? If so, how is it different from SoundScaper and FieldScaper (all made by the same dev, btw)?

[yonhorizon]

idensity

[Async-Async]

If you’re into drones and deep sound design, definitely check out GrainHeads. It’s a newer granular app on iOS that leans heavily into modulation and performance-oriented granular control rather than just “sample cloud ambience.”

A few things that stand out for your criteria:

• Five independent playheads for layered granular movement and evolving textures

• Works as both an AUv3 instrument and audio effect, so you can process external audio inside AUM/Audiobus/DAWs

• Strong “surface-level” workflow: a lot of deep granular shaping is accessible without endless menu diving

• Very modulation-friendly for drone design and long evolving patches

• Recently added a dual-filter setup with LP/BP/HP + notch/shelf modes, and clever link modes (free/linked/mirrored) for stereo and morphing-style movement

Compared to something like Borderlands:

Borderlands is amazing for freeform tactile experimentation.
GrainHeads feels more structured/modulatable if you want repeatable patches and deeper shaping.

Since you mentioned flexibility/modularity first after sound quality, it might fit your lane especially well.

Curious what matters most in your workflow:

• live performance / FX processing?

• pure sound-design sessions?

• or DAW/AUM integration and automation?

[kvotchin]

I mean, for #2, it’s gotta be miRack with Drambo not too far behind.

Sound quality, I have no idea. I own a few, and they all sound good to me, so.. eh. It’s subjective? :p

And the rest are subjective too. Except sample import, which as far as I’m aware is universal, for the granular synths.

[kv331]

Wait for SynthMaster 3, will be released 2026 Q4. It features a granular osc module as well.