# rrarrow vs Koto Master

The clearest difference is ads: rrarrow at none against Koto Master's shown. Koto Master's advantage is price ($2.99 vs $3.99) and iOS requirement (11.0 vs 15.6). On in-app purchases and device support there is nothing between them.

rrarrow costs $3.99 and Koto Master $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | rrarrow | Koto Master |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | **[4.6 (19 ratings)](https://appshunter.io/ios/app/rrarrow/id814966319/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 81.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | — |
| Monetization | Paid | — |
| Size | 29 MB | 130 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexey Nadzharov](https://appshunter.io/developer/729549192) | [SENSOR NOTES JOINT STOCK COMPANY](https://appshunter.io/developer/1578811305) |

## What reviewers say

### rrarrow

[App page](https://appshunter.io/ios/app/rrarrow/id814966319)

Create experimental audio effects with extended feedback capabilities. This modular noise machine offers a simplified interface for fast assembly and flexible connectivity, allowing you to control processing parameters with the audio signal itself.

**Highlights:** Modular audio effect processing, Extended feedback capabilities, 20 audio processing blocks, Built-in audio recorder, MIDI controller support, Audiobus and Inter-App Audio support, Background audio playback

**Features:** Vision Pro support

**In-app purchases:** none


### Koto Master

[App page](https://appshunter.io/ios/app/koto-master/id6447333997)

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

**In-app purchases:** none


## Frequently asked questions

### Is rrarrow free?

rrarrow costs $3.99, with no in-app purchases.

### Is Koto Master free?

Koto Master costs $2.99, with no in-app purchases.

### Do rrarrow or Koto Master have ads?

Koto Master shows ads; rrarrow does not.

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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.*