# rrarrow vs MIDI FX

The clearest difference is price: MIDI FX at Free against rrarrow's $3.99. MIDI FX also leads on rating (5.0 vs 4.6) and update cadence (every 9 days vs every 4 weeks). rrarrow's advantage is in-app purchases (none vs 1) and ratings volume (19 vs 4). On ads, device support and iOS requirement there is nothing between them.

MIDI FX is free to download; rrarrow costs $3.99 up front. MIDI FX sells 1 one-off in-app purchase. rrarrow asks for nothing beyond the download.

MIDI FX holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 19 and 4 respectively.

rrarrow ships an update every 4 weeks, MIDI FX every 9 days. The most recent releases landed on September 24, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | rrarrow | MIDI FX |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.6 (19 ratings)](https://appshunter.io/ios/app/rrarrow/id814966319/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/midi-fx/id1641511918/reviews)** |
| Number of ratings | **19** | 4 |
| Positive reviews | 81.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 9 days** |
| Monetization | Paid | **Free** |
| Size | 29 MB | 263 MB |
| Requires iOS | 15.6 | **14.7** |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Alexey Nadzharov](https://appshunter.io/developer/729549192) | [Jorge Arroyo](https://appshunter.io/developer/548989572) |

## 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


### MIDI FX

[App page](https://appshunter.io/ios/app/midi-fx/id1641511918)

This app allows you to control and process MIDI signals for music creation. It offers features like harmonization, transposition, and sequencing, enabling you to control external or virtual synthesizers and create complex musical arrangements.

**Highlights:** MIDI signal processing, Harmonize and Transpose, Sequencer for synths, Delay and Looper, Filter notes by velocity, Internal instruments

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock app | $9.99 | one-time |


## Frequently asked questions

### Is rrarrow free?

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

### Is MIDI FX free?

MIDI FX is free to download, with in-app purchases available.

### Which has better reviews, rrarrow or MIDI FX?

MIDI FX is rated higher. rrarrow averages 4.6 out of 5 from 19 ratings, while MIDI FX averages 5.0 from 4 ratings.

### Do rrarrow or MIDI FX have ads?

Neither rrarrow nor MIDI FX shows ads.

### Which is updated more often, rrarrow or MIDI FX?

rrarrow ships an update every 4 weeks, and MIDI FX every 9 days. Most recently, rrarrow was updated on September 24, 2026 and MIDI FX on June 4, 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.*