1. Home
  2. 🎵 Music
  3. FM 304
FM 304

FM 304

FM Groovebox

4 ratings
3 reviews
🎵 Music
$3.99

Details

  • Released
  • Updated
  • April 14, 2019
  • April 28, 2026

Developer

Paul Betowski
✨Promote your app ✨
FM 304 screenshot #1 for iPad
FM 304 screenshot #2 for iPad
FM 304 screenshot #3 for iPad
FM 304 screenshot #4 for iPad
FM 304 screenshot #5 for iPad
⭐3
Reviews↘︎
🔄6+ apps
Alternatives↘︎
❓8 answered
FAQ↘︎
📦~ in 3 years
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

Create music with three powerful FM synthesizers, each featuring integrated sequencers and onboard effects. This app offers intuitive real-time control over all synth parameters for quick sound design and tune creation.

✓Three 4-operator FM synths
✓Integrated sequencers
✓Onboard delay, reverb, and chorus effects
✓One knob per function control
✓100 save slots
✓8 algorithms
✓Note frequency quantize
Show original description

What's New in FM 304

1.1.5

April 28, 2026

Bug fixes

User reviews

Most RecentHighest RatedLowest Rated

❤️ it

Can have some fun little sessions with this one. Thanks for the update! Wish it had some multiout action and a tap tempo button and a pretty please for auv3 on all your groove box apps ;0
Also I love the app design on your apps very well done quite beautiful thanks!
DJSUN1DJSUN1

fm sequencing madness!

sounds great and alot of fun!i wish the knobs were bigger its hard to adjust on ipad mini .
rcon303rcon303

Mind blowing fm beats

Very unique, and 4 fm drum synths in a window with all parameters! I feel the need to be minimal as is the app, yet the results are very intense and insane fm capacity overflowing the wires in the mind of the iPads soul. Seriously great idea to just put all the knobs and sliders on one page to ease the overwhelm.
Show more
Oceans in spaceOceans in space

Developer apps

DUBSTEP / Loops / Keyboard / Drums
DUBSTEP / Loops / Keyboard / Drums

by Paul Betowski

🎵 Music

(7)

$0.99
E Theremin – Electro Theremin
E Theremin – Electro Theremin

by Paul Betowski

🎵 Music

(4)

$2.99
SynthDrum Pads
SynthDrum Pads

by Paul Betowski

🎵 Music

(1)

$3.99
DNB / Loops / Synth
DNB / Loops / Synth

by Paul Betowski

🎵 Music

(2)

$0.99
E–Theremin MKII
E–Theremin MKII

by Paul Betowski

🎵 Music

(5)

$3.99
WubSynth
WubSynth

Dubstep, EDM & DnB Bass Synth

🎵 Music

(7)

$2.99
See developer apps

FAQ

What is FM 304?

FM 304 is a music creation application for iPad that features three 4-operator FM synthesizers, each equipped with integrated sequencers and onboard effects like delay, reverb, and chorus.

How much does FM 304 cost?

FM 304 is a paid application, priced at $3.99. This one-time purchase grants you full access to all its features.

What devices does FM 304 support?

FM 304 is designed exclusively for iPad devices, offering a tailored experience for Apple's tablet platform.

How often is FM 304 updated?

The application was last updated on December 8, 2020, with version 1.1.0. While updates may not be frequent, the app is stable and functional.

What is the age rating for FM 304?

FM 304 has an age rating of 4+, making it suitable for a wide range of users interested in music creation.

Can I save my creations in FM 304?

Yes, FM 304 provides 100 save slots, allowing you to store and recall your unique sounds and tunes.

What kind of effects are included in FM 304?

FM 304 includes essential onboard effects to enhance your sound design, such as delay, reverb, and chorus.

Does FM 304 have ads?

As a paid application, FM 304 does not contain advertisements. You can enjoy an uninterrupted music creation experience.