# ClashSiren vs 16 Drones

The clearest difference is in-app purchases: ClashSiren at none against 16 Drones's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 16 Drones sells 1 one-off in-app purchase. ClashSiren asks for nothing beyond the download.

ClashSiren ships an update weekly, 16 Drones every 2 weeks. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | ClashSiren | 16 Drones |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (12 ratings)](https://appshunter.io/ios/app/16-drones/id6761003327/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 48 MB | 8 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Steven Tigwell](https://appshunter.io/developer/1860687380) | [Ruben Terron Rodriguez](https://appshunter.io/developer/1876605725) |

## What reviewers say

### ClashSiren

[App page](https://appshunter.io/ios/app/clashsiren/id6756442227)

**Features:** macOS Compatibility, Vision Pro support

**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 ClashSiren free?

ClashSiren is free to download, with no in-app purchases.

### Is 16 Drones free?

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

### Do ClashSiren or 16 Drones have ads?

Neither ClashSiren nor 16 Drones shows ads.

### Which is updated more often, ClashSiren or 16 Drones?

ClashSiren ships an update weekly, and 16 Drones every 2 weeks. Most recently, ClashSiren was updated on October 4, 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.*