# FM 304 vs 16 Drones

FM 304 and 16 Drones both sit at 4.8 stars, but that hides the real split: 100% of FM 304's written reviews are positive against 50% of 16 Drones's. FM 304 also leads on in-app purchases (none vs 1) and iOS requirement (12.0 vs 18.0). 16 Drones's advantage is price (Free vs $3.99) and update cadence (every 2 weeks vs every 43 months). On rating and device support there is nothing between them.

16 Drones is free to download; FM 304 costs $3.99 up front. 16 Drones sells 1 one-off in-app purchase. FM 304 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for FM 304 against 4.7 for 16 Drones. Both are backed by a comparable volume of ratings — 4 and 12 respectively. Written reviews are what separate them: 100% of FM 304's written reviews are positive against 50% of 16 Drones's.

FM 304 ships an update every 43 months, 16 Drones every 2 weeks. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | FM 304 | 16 Drones |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/fm-304/id1449167984/reviews)** | [4.7 (12 ratings)](https://appshunter.io/ios/app/16-drones/id6761003327/reviews) |
| Number of ratings | 4 | **12** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 43 months | **Every 2 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 17 MB | 8 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Betowski](https://appshunter.io/developer/538476580) | [Ruben Terron Rodriguez](https://appshunter.io/developer/1876605725) |

## What reviewers say

### FM 304

[App page](https://appshunter.io/ios/app/fm-304/id1449167984)

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.

**Highlights:** 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

**In-app purchases:** none


### 16 Drones

[App page](https://appshunter.io/ios/app/16-drones/id6761003327)

Create evolving soundscapes and harmonic textures with a powerful ambient drone synthesizer. Shape layered drones using custom wavetables and envelopes, then perform expressively in key. Offers deep timbral control and flexible MIDI integration.

**Highlights:** 16 drone voices for layered textures, Custom wavetable synthesis, Per-voice drone envelopes, Subtractive synthesis layer, Expressive in-key performance voice, Support for musical scales, Standalone and AUv3 operation, MIDI input and learn

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 16 Drones Pro | $11.99 | one-time |


## Frequently asked questions

### Is FM 304 free?

FM 304 costs $3.99, with no in-app purchases.

### Is 16 Drones free?

16 Drones is free to download, with in-app purchases available.

### Which has better reviews, FM 304 or 16 Drones?

FM 304 is rated higher. FM 304 averages 4.8 out of 5 from 4 ratings, while 16 Drones averages 4.7 from 12 ratings.

### Which is updated more often, FM 304 or 16 Drones?

FM 304 ships an update every 43 months, and 16 Drones every 2 weeks. Most recently, FM 304 was updated on October 2, 2026 and 16 Drones on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*