# Audio Kit vs NERD Synth A2x + AUv3

The clearest difference is rating: NERD Synth A2x + AUv3 at 4.9 against Audio Kit's 3.5. NERD Synth A2x + AUv3 also leads on in-app purchases (none vs 1) and update cadence (fortnightly vs every 6 months). Audio Kit's advantage is price ($2.99 vs $5.99). On ads, device support and iOS requirement there is nothing between them.

Audio Kit costs $2.99 and NERD Synth A2x + AUv3 $5.99 up front. Audio Kit sells 1 one-off in-app purchase. NERD Synth A2x + AUv3 asks for nothing beyond the download.

NERD Synth A2x + AUv3 holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: NERD Synth A2x + AUv3 has 1.3K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 76% of Audio Kit's written reviews are positive against 90% of NERD Synth A2x + AUv3's.

Audio Kit ships an update every 6 months, NERD Synth A2x + AUv3 fortnightly. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Audio Kit | NERD Synth A2x + AUv3 |
| --- | --- | --- |
| Price | **$2.99** | $5.99 |
| Rating | [3.5 (6 ratings)](https://appshunter.io/ios/app/audio-kit/id376965050/reviews) | **[4.9 (1.3K ratings)](https://appshunter.io/ios/app/nerd-synth-a2x-plus-auv3/id6478898564/reviews)** |
| Number of ratings | 6 | **1.3K** |
| Positive reviews | 76.3% of reviews | **90.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 2 MB | 242 MB |
| Requires iOS | 15.6 | **14.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sinusoid Pty Ltd](https://appshunter.io/developer/364871696) | [AudioKit Pro](https://appshunter.io/developer/1307785645) |

## What reviewers say

### Audio Kit

[App page](https://appshunter.io/ios/app/audio-kit/id376965050)

This app provides four essential audio analysis tools: a real-time spectrum analyzer, a waveform scope, an SPL meter, and a signal generator. It helps audio professionals visualize and measure sound characteristics with detailed controls and calibration options.

**Highlights:** Real-time Spectrum Analyzer, Waveform Scope, SPL Meter with A-weighting, Signal Generator (Sine, White, Pink Noise), Sweep Generation (In-App Purchase), Screen Capture

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sweep Generator for Audio Kit | $1.99 | one-time |


### 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 Audio Kit free?

Audio Kit costs $2.99, and also offers 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, Audio Kit or NERD Synth A2x + AUv3?

NERD Synth A2x + AUv3 is rated higher. Audio Kit averages 3.5 out of 5 from 6 ratings, while NERD Synth A2x + AUv3 averages 4.9 from 1.3K ratings.

### Do Audio Kit or NERD Synth A2x + AUv3 have ads?

Neither Audio Kit nor NERD Synth A2x + AUv3 shows ads.

### Which is updated more often, Audio Kit or NERD Synth A2x + AUv3?

Audio Kit ships an update every 6 months, and NERD Synth A2x + AUv3 fortnightly. Most recently, Audio Kit was updated on October 15, 2026 and NERD Synth A2x + AUv3 on October 16, 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.*