ClashSiren vs 16 Drones
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ClashSiren
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A dub siren for your next sound clash. The app offers the following settings: Oscillator: Square or sawtooth wave Pitch: Up or down an octave LFO Rate: Fast or slow LFO Shape: Square or triangle wave There is also a Dub FX switch that will turn on reverb and delay but if you prefer a dry sound you can leave the FX switch off.
16 Drones
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.
- 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
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16 Drones is an ambient drone synthesizer built for evolving textures, harmonic soundscapes, and expressive in-key performance. Shape layered drones with a custom wavetable engine, per-voice controls, per-voice custom drone envelopes, and an additional subtractive layer. Then perform on top with a dedicated Play voice that stays in the same scale. Designed to be deep but immediate, 16 Drones gives you rich timbral control, musical scale exploration, expressive performance options, flexible MIDI workflow, and both standalone and AUv3 operation. Features: 16 drone voices for layered evolving textures Custom wavetable synthesis with per-voice control Per-voice custom drone envelopes for motion and character An additional subtractive layer for extra depth and weight A dedicated Play voice for expressive in-key performance Rich musical and exotic scales Standalone app and AUv3 instrument support MIDI input support for performance and control MIDI Learn for fast hardware mapping Aftertouch expression support, including polyphonic aftertouch Factory presets for fast inspiration
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ClashSiren | 16 Drones |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (12 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 12 — better |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 48 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Steven Tigwell | Ruben Terron Rodriguez |
In-app purchases
ClashSiren
No in-app purchases
16 Drones
- 16 Drones Pro$11.99
