# FrobulatorAU vs 16 Drones

The clearest difference is in-app purchases: FrobulatorAU at none against 16 Drones's 1. FrobulatorAU also leads on rating (5.0 vs 4.7). On price, ratings volume, update cadence and ads there is nothing between them.

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

FrobulatorAU holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 8 and 12 respectively.

FrobulatorAU ships an update every 9 days, 16 Drones every 2 weeks. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | FrobulatorAU | 16 Drones |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/frobulatorau/id6760205581/reviews)** | [4.7 (12 ratings)](https://appshunter.io/ios/app/16-drones/id6761003327/reviews) |
| Number of ratings | 8 | **12** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 8 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Caldwell](https://appshunter.io/developer/993500585) | [Ruben Terron Rodriguez](https://appshunter.io/developer/1876605725) |

## What reviewers say

### FrobulatorAU

[App page](https://appshunter.io/ios/app/frobulatorau/id6760205581)

This audio effect plugin transforms sounds with spectral delay, adding unique character to music projects. It's a free and open-source tool designed for use in various audio applications, offering extensive creative possibilities.

**Highlights:** Spectral delay effect, AUv3 plugin, Use in GarageBand, AUM, and other DAWs, Multiple instances per project, Free and open-source, No ads or in-app purchases

**Features:** 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 FrobulatorAU free?

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

### Is 16 Drones free?

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

### Which has better reviews, FrobulatorAU or 16 Drones?

FrobulatorAU is rated higher. FrobulatorAU averages 5.0 out of 5 from 8 ratings, while 16 Drones averages 4.7 from 12 ratings.

### Do FrobulatorAU or 16 Drones have ads?

Neither FrobulatorAU nor 16 Drones shows ads.

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

FrobulatorAU ships an update every 9 days, and 16 Drones every 2 weeks. Most recently, FrobulatorAU was updated on October 1, 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.*