FM 304 vs HIT+MIX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FM 304
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
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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.
HIT+MIX
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Originally designed to enhance affordable electronic drum kits, this app bridges the gap by adding customizable samples and a powerful level mixer. Build your own kits using your own .WAV files and tailor the MIDI mapping to perfectly match your drum pads or triggers. You can even use it as a general sample player to trigger sound effects through a mixer. The app includes a starter library of classic kits—ROCK, POP, 606, 808, and 909—and makes it easy to create your own. Simply add folders of named samples via the iOS Files app or directly from your Mac or Windows computer. A customizable MIDIMAPPING.TXT file lets you assign specific MIDI note numbers to your samples, giving you total control over your setup. Both kits and mapping files are accessible through the iOS Files app or from a connected desktop. And with its ultra‑low latency, you’ll experience true real‑time responsiveness—perfect for live performance.
Screenshots
Verdict
The clearest difference is price: HIT+MIX at Free against FM 304's $3.99. HIT+MIX also leads on device support (3 vs 1). On in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
HIT+MIX is free to download; FM 304 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | FM 304 | HIT+MIX |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.8 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 43 months | — |
| Ads | — | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 17 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Betowski | Mark Gilbert |
In-app purchases
FM 304
No in-app purchases
HIT+MIX
No in-app purchases









