FRMS - Granular Synthesizer 4+

4-layer granular with FM

Imaginando Lda

    • 4.8 • 276 Ratings
    • $9.99
    • Offers In-App Purchases

Screenshots

Description

FRMS blends Granular, FM, Additive, and Subtractive synthesis in a powerful, flexible layering system. Create lush, evolving soundscapes or gritty, glitchy textures by combining up to four synthesis layers. With a sleek, intuitive interface, FRMS turns basic sounds into immersive audio experiences—from dense ambient drones to mechanical soundscapes.

Choose from FRMS’s curated sample library, import your own sounds, or capture live audio for instant granulation. Shape unique sounds with layered synthesis, independent envelopes, modulation, and effects.

Key Features:

- 4 Synthesis Engines, 4 Layers Per Voice – Mix Granular, FM, Additive, and Subtractive synthesis.
- FM Modes & Operator Stacking – Create rich, complex tones with 8 FM modes.
- Real-Time Granulation – Process samples or live audio with up to 640 grains.
- Deep Modulation & Envelope Control – Modulation matrix per layer, plus 2 EGs and filters per layer.
- Advanced FX & Polyphony – 4 voices polyphony, arpeggiator, delay, and reverb.
- High-Quality Sample Library & MPE Compatibility – Access FRMS’s expansive sound library and integrate with MIDI Polyphonic Expression and Ableton Link.

Unlock endless sonic possibilities with FRMS, perfect for both beginners and advanced sound designers.

"Imaginando super fan over here ..own everything they make. FRMS is no exception, as it’s incredibly powerful, versatile, and surprisingly intuitive. It’s a joy to work with, and the sound possibilities are endless."

"I expected a lot from this app given the pedigree of the developer, but wow, this exceeded all my expectations. The depth of the granular synthesis engine combined with FM is truly amazing. A must-have for any sound designer."

"This is a great app for anyone serious about granular synthesis. The interface is clean and easy to use, and the sound quality is top-notch. I find myself getting lost for hours exploring new sounds."

"This synth is an interesting and great evolution in the world of granular. It pushes the boundaries of what you can do with layers and modulation. The presets are inspiring, but the real magic comes when you start creating your own."

"FRMS has officially become my favorite synth app. The way it combines granular synthesis and FM is just genius. You can get subtle textures or full-blown sonic mayhem. Highly recommended!"

"Every time I use FRMS, I feel like I’m discovering new dimensions of sound. The modulation options are vast, and the way you can shape tones makes it a designer’s dream. This app has changed my approach to sound design."

"There’s something magical about the way FRMS handles sound. It’s intuitive yet deep, and I’ve created some of my best work using this app. Kudos to the developers for making such a high-quality product."

"FRMS is absolutely brilliant. The interface is smooth, and the ability to layer sounds and modulate them takes granular synthesis to another level. I’ve been recommending it to everyone I know."

"This app is an endless source of inspiration. Whether I’m working on cinematic soundscapes or glitchy textures, FRMS has everything I need. The layers and effects are phenomenal."

"If you love creating ambient music, this app is for you. The ability to tweak and layer samples into lush textures is incredible. It’s become an essential part of my workflow."

"The design of FRMS is superb. It’s both visually pleasing and incredibly functional. Every detail has been thought through, and the sound engine delivers in every way."

"Hands down, the best granular synth I’ve used. The presets are great, but what sets it apart is how intuitive it is to create your own unique sounds."

What’s New

Version 1.11.3

- Fixed virtual port name
- General bug fixes and improvements

Ratings and Reviews

4.8 out of 5
276 Ratings

276 Ratings

BozoToo ,

New and Improved Updated Review

I am happy to amend my previous 3-star review. The Dev added the wave file import feature that this Ap was begging for. My only other problem was a couple features that were not working (chorder and hold functions). The rapid response from the Dev. was that answered the problem being related to MPE being enabled. Turn that off in "preferences" and ...bingo, problem solved. Based on the rapid response from the Dev. I have no doubt that this will be fixed soon enough. Even without those features, this Ap is breaking new ground. Combining FM with Granular and subtractive synthesis is a great idea that has been too long in coming. The only thing I can think of that it really needs now is a good manual. The current on-line manual does a good job of describing features but tells us little about how to use them. But this problem only applies to the less obvious functions, as most of the Ap will be self-explanatory to those who are already familiar with subtractive, FM and granular synthesis. I would lobby for future development to include a non-chromatic keypad-style keyboard which will allow users to create or select fixed scales and modal scales. After that, it will be hard to add anything to this great synthesizer Ap.

Developer Response ,

Thank you for your updated review! Best regards

Ryann Bella ,

iOS sure spoils the creativity junkies

This thing slays. Don’t be intimidated by it, ignore the nitpicking reviews, and don’t let thoughts ruin the experience. Dive right in and enjoy the ride. First timers or wise sages this synth has reward. If you enjoy messing with sound or mastering frequency or whatever the deal you got going on….. this synth is fun, adventurous, and just sexy. This app tech has been a gift, it’s cheap, capable, and with all the criticism and nitpicking reviews most developers really develop the heck out of them. Good times. So yeah, I dig it, I bet cash money you may as well(cash money is metaphorical but creating cool audio is not with this bad boy on your pad). The glitch’s from the heart pack sold separately is particularly cool to me because I dig making Autechre/skinny puppy type tracks and taking the presets and tweaking them about gives me great foundation for otherworldly IDM/glitch/hip hop tunes. Very cool.

Developer Response ,

Thank you SO MUCH for your inspirational review Ryann! You've made our day :)

Synth Dabbler ,

Check out the Foley voices (in-app purchase)

It’s hard to find something that stands out in the iOS environment. There’s just too much good stuff. However, I have a fondness for this company, they are really engaged and creative!

For me, the presets made out of Foley samples make this app. Not only is it encouragement to make your own, it’s also an acknowledgment that not everyone wants to learn everything about every app. Sometimes it’s all about finding something easy to use that speaks to you. Thanks.

Developer Response ,

Thanks for this amazing review! Best regards

App Privacy

The developer, Imaginando Lda, 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

Supports

  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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