FM 304 Downloads & RevenueFM 304 · App Store
Not in any tracked top chart right now.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperPaul Betowski
CategoryMusic
Price3.99 EUR
Released
Rating★ 0.0 (0)
Version1.1.5
Age rating4+
First seen by us
26 Sep 2026
26 Sep 2026Full timeline · 3 events
- 🆕FM 304 first spotted by AppInsider#56 in Top Paid · All Apps · Spain
- 📦FM 304 version 1.1.5Bug fixes
- 🆕FM 304 released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
FM 304 on the App Store
App details
App ID
1449167984
Publisher
Paul Betowski
On the store since
Apr 2019
7 years on the store
Minimum OS
iOS 12.0+
Devices
iPad
Content rating
4+
Languages
1
EN
Size
18 MB
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About FM 304
FM 304 — 3x FM Synth Groovebox
FM 304 is a powerful trio of 4-operator FM synthesizers, each with its own sequencer and effects. Built for fast, hands-on sound design, every parameter is available with a one-knob-per-function layout — no menus, no digging.
Create evolving patterns, punchy sequences, and complex FM textures in seconds. Everything is on screen, ready to tweak, making it easy to move from idea to finished loop without breaking flow.
Features
• 3 independent 4-operator FM synthesizers
• Immediate one-knob-per-function control
• 3x 16-step sequencers (one per synth)
• Built-in effects: delay, reverb, chorus
• 3x LFOs for modulation
• 8 FM algorithms
• Note frequency quantisation
• 100 save slots
Designed for speed
No menu diving. No setup.
Just pure FM synthesis with everything visible and playable.
FM 304 is a powerful trio of 4-operator FM synthesizers, each with its own sequencer and effects. Built for fast, hands-on sound design, every parameter is available with a one-knob-per-function layout — no menus, no digging.
Create evolving patterns, punchy sequences, and complex FM textures in seconds. Everything is on screen, ready to tweak, making it easy to move from idea to finished loop without breaking flow.
Features
• 3 independent 4-operator FM synthesizers
• Immediate one-knob-per-function control
• 3x 16-step sequencers (one per synth)
• Built-in effects: delay, reverb, chorus
• 3x LFOs for modulation
• 8 FM algorithms
• Note frequency quantisation
• 100 save slots
Designed for speed
No menu diving. No setup.
Just pure FM synthesis with everything visible and playable.
Latest updates
1.1.5
Bug fixes
