# Twelve Tone vs NERD Synth A2x + AUv3

The clearest difference is update cadence: NERD Synth A2x + AUv3 at fortnightly against Twelve Tone's every 18 months. NERD Synth A2x + AUv3 also leads on ratings volume (1.4K vs 16) and review sentiment (89% vs 70%). Twelve Tone's advantage is price ($4.99 vs $5.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Twelve Tone costs $4.99 and NERD Synth A2x + AUv3 $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NERD Synth A2x + AUv3 holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: NERD Synth A2x + AUv3 has 1.4K ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 70% of Twelve Tone's written reviews are positive against 89% of NERD Synth A2x + AUv3's.

Twelve Tone ships an update every 18 months, NERD Synth A2x + AUv3 fortnightly. Both last shipped on October 27, 2026.

## The numbers

| Metric | Twelve Tone | NERD Synth A2x + AUv3 |
| --- | --- | --- |
| Price | **$4.99** | $5.99 |
| Rating | [4.7 (16 ratings)](https://appshunter.io/ios/app/twelve-tone/id411708898/reviews) | **[4.9 (1.4K ratings)](https://appshunter.io/ios/app/nerd-synth-a2x-plus-auv3/id6478898564/reviews)** |
| Number of ratings | 16 | **1.4K** |
| Positive reviews | 70.0% of reviews | **89.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 50 MB | 242 MB |
| Requires iOS | 26.0 | **14.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Q. Kelly](https://appshunter.io/developer/310068987) | [AudioKit Pro](https://appshunter.io/developer/1307785645) |

## What reviewers say

### Twelve Tone

[App page](https://appshunter.io/ios/app/twelve-tone/id411708898)

This app helps musicians and teachers compose and analyze music using dodecaphonic and set theory. It allows users to enter tone rows, automatically generates musical matrices, and provides playback and sharing options for compositions.

**Highlights:** Enter tone rows via staff or piano keyboard, Automatic generation of Prime, Inversion, Retrograde, RI matrices, Real-time Interval Vectors and Circular Analysis updates, Save and manage tone rows with names and markings, Share PDF of notation, keyboard, and analysis, Listen to row playback with selected rhythm patterns, Matrix audio playback for pitch identification

**In-app purchases:** none


### NERD Synth A2x + AUv3

[App page](https://appshunter.io/ios/app/nerd-synth-a2x-plus-auv3/id6478898564)

This virtual analog synthesizer offers a powerful and intuitive sound design experience, inspired by classic hardware. Explore over 40 classic waveforms, a versatile arpeggiator, step sequencer, and lush effects to craft unique electronic music.

**Highlights:** Virtual Analog Synthesizer, 40+ Classic Waveforms, Arpeggiator, Step Sequencer, Lush Effects Suite, Four-voice Unison, AUv3 Plugin Support

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ⭐ Outstanding synth
- 👍 Very nice and rich sounding
- 🎨 Great presets and sound design
- 🔧 Easy to use and intuitive
- 💻 Works well in AUv3 environments

**What reviewers complain about**

- 🐛 Doesn't show up in Logic
- 🔧 Needs to be more Mac-compatible
- 🔧 Changing presets can be sluggish
- 🔧 Missing aftertouch/expression support

**Reported bugs**

- Doesn't fit properly in Logic Pro for iPad
- Keyboard keys get stuck when using a controller

**Requested features**

- Dark mode option
- Undo/redo functionality
- Improved Logic Pro integration
- Ability to change color scheme


## Frequently asked questions

### Is Twelve Tone free?

Twelve Tone costs $4.99, with no in-app purchases.

### Is NERD Synth A2x + AUv3 free?

NERD Synth A2x + AUv3 costs $5.99, with no in-app purchases.

### Which has better reviews, Twelve Tone or NERD Synth A2x + AUv3?

NERD Synth A2x + AUv3 is rated higher. Twelve Tone averages 4.7 out of 5 from 16 ratings, while NERD Synth A2x + AUv3 averages 4.9 from 1.4K ratings.

### Do Twelve Tone or NERD Synth A2x + AUv3 have ads?

Neither Twelve Tone nor NERD Synth A2x + AUv3 shows ads.

### Which is updated more often, Twelve Tone or NERD Synth A2x + AUv3?

Twelve Tone ships an update every 18 months, and NERD Synth A2x + AUv3 fortnightly. Most recently, Twelve Tone was updated on October 27, 2026 and NERD Synth A2x + AUv3 on October 27, 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.*