# ShiftBud Generative MIDI AUv3 vs REVIRY

The clearest difference is price: REVIRY at Free against ShiftBud Generative MIDI AUv3's $5.99. REVIRY also leads on update cadence (every 2 days vs monthly). ShiftBud Generative MIDI AUv3's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 17.0). On ads and device support there is nothing between them.

REVIRY is free to download; ShiftBud Generative MIDI AUv3 costs $5.99 up front. REVIRY sells 1 one-off in-app purchase. ShiftBud Generative MIDI AUv3 asks for nothing beyond the download.

ShiftBud Generative MIDI AUv3 ships an update monthly, REVIRY every 2 days. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ShiftBud Generative MIDI AUv3 | REVIRY |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.7 (9 ratings)](https://appshunter.io/ios/app/shiftbud-generative-midi-auv3/id1616169031/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Paid | — |
| Size | 7 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cem Olcay](https://appshunter.io/developer/523633853) | [Jonathan Marino](https://appshunter.io/developer/1884412272) |

## What reviewers say

### ShiftBud Generative MIDI AUv3

[App page](https://appshunter.io/ios/app/shiftbud-generative-midi-auv3/id1616169031)

This app generates random MIDI sequences using a shift register chip, inspired by a popular eurorack module. It offers extensive control over scales, octaves, velocity, and MIDI CC modulation, allowing for complex and evolving musical patterns.

**Highlights:** Random looping generative MIDI sequencing, 16-bit shift register logic, Adjustable chaos for sequence variation, Over 110 scales plus custom scales, MIDI CC generation and modulation, Unlimited pattern pages, Manual trigger function

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

**In-app purchases:** none


### REVIRY

[App page](https://appshunter.io/ios/app/reviry/id6760435959)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $9.99 | one-time |


## Frequently asked questions

### Is ShiftBud Generative MIDI AUv3 free?

ShiftBud Generative MIDI AUv3 costs $5.99, with no in-app purchases.

### Is REVIRY free?

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

### Do ShiftBud Generative MIDI AUv3 or REVIRY have ads?

Neither ShiftBud Generative MIDI AUv3 nor REVIRY shows ads.

### Which is updated more often, ShiftBud Generative MIDI AUv3 or REVIRY?

ShiftBud Generative MIDI AUv3 ships an update monthly, and REVIRY every 2 days. Most recently, ShiftBud Generative MIDI AUv3 was updated on October 15, 2026 and REVIRY on October 10, 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.*