Fluss - Granular Playground

• Price: $13.99

Last verified 31 Jul 2026

4.8 70 ratings · App Store

1. 5/5Very Fun!

   Overall, this is an amazing implementation of granular synthesis. Fluss is very fun to use and the integration with the touch interface toward modulation is particularly innovative. That said, the more I like it, the more I want Fluss2! Specifically, I would love more clock and tempo syncing options, particularly around when grains are triggered (like on Beads). But also, when using Fluss as a processor, some more visualization of the buffer, playback head speed, and modulation, in terms of tempo rather than time. The quantizer also begs for more visualization. I’d love to see the boundaries shown in the XY control for notes! And if that gets too keyboard-y and not Buchla enough, you could make the boundaries into shapes, or even allow the user to change the layout to keep it super creative. Basically keeping the fun randomness, but allowing for a biiiiiit more control, when desired. Further, while the touch interface is very innovative, I found it a bit sensitive. Very easy to cause the controls to move too fast. You can use the friction control to slow things down, but that seems to slow everything down. Would be nice to have a global friction and a separate sensitivity option so flicking a slider could only apply a maximum amount of force. Lastly, being able to apply modulation to a specific play head would be huge. So one head could be making bigger grains and another smaller, for example. Well done!

   pj4533 · 31 Jul 2026

2. 5/5This thing mangles your sound, and I’m here for it!

   One use for this app is to take original compositions and put a unique twist on them. Another is to use your voice (or someone else’s) and warp it into who-knows-what? It is possible to record sounds directly into the app, although I tend to prefer using existing sound files. This thing is a bloomin’ playground! Great for soundscapes, which I’m only now later in life starting to experiment with. I am nowhere near fluent with granular synths, so reading others’ comments regarding improvements and alterations is interesting to me — stuff I never thought of. But I’m going with a win-win on this one — and you can’t go wrong with the price point, either!

   TheOneIronHorse · 31 Jul 2026

3. 5/5Very Impressive (after exploring)

   Initially I was not impressed by this. Usually I am underwhelmed, as an iphone developer, by gimmicky new ways to slide your fingers across the “no-so-precise” touchscreen of apples generalized 40pxl radius to work with. This usually makes it so apps like this are good in theory or on paper but not so great in experience. No so with Fluss. I was going about my initial use of this all wrong, trying to maintain consistent control instead of letting go. This tool will help you let the process just flow or .. fluss. Good Job from Bram and bach with this one.

   EthanGross · 31 Jul 2026

4. 4/5It could be perfect, but not quite there yet

   Fantastic fun music app - such an idea generator! My biggest complaint is twofold: 1. You can’t SAMPLE.. yet this is supposed to be a granular sampler. Having to load wav files from your iOS File explorer is a pain and should be an option. Please add a “sample” button that activates the microphone on your iOS device (see Andrew Huang’s “Flip” for reference). 2. There needs to be preset browser arrows to page through your presets without having to open the pop-up browser window. Fix those two glaring issues, and you’ll have a 5-star review. Even if you don’t make a proper desktop version for your DAW.

   Pookie Pants Stank · 31 Jul 2026

5. 4/5A very intuitive granular

   Fluss works, at least for me, because like so much of Hainbach’s corpus, it’s grounded in tactile concepts: rebounding particles, tape loops, slow, slow, SLOW time. If that’s what you’re after, it’s a great tool for creating evolving spatial and temporal textures. That said, I can’t give it five stars because of a GLARING (to me anyway) flaw: it stops playing audio if you put it in the background. This means I can’t use an external plugin (like Lines or Filterjam, or BlindEQ) along with it, and that’s exactly what I want to do with it. That said, if you aren’t looking to multitask with it on the ipad, it’s a great means to that glitchy but also soft focus sound.

   Gary E. Walker · 31 Jul 2026

Privacy

• Data Not Collected Developer declared

Accessibility

No accessibility labels collected yet.