# AudioLayer vs NuRack Auv3 FX Processor

The clearest difference is in-app purchases: NuRack Auv3 FX Processor at none against AudioLayer's 1. NuRack Auv3 FX Processor also leads on review sentiment (84% vs 56%) and price ($7.99 vs $12.99). AudioLayer's advantage is ratings volume (179 vs 42). On update cadence, ads, device support and iOS requirement there is nothing between them.

AudioLayer costs $12.99 and NuRack Auv3 FX Processor $7.99 up front. AudioLayer sells 1 one-off in-app purchase. NuRack Auv3 FX Processor asks for nothing beyond the download.

NuRack Auv3 FX Processor holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 179 and 42 respectively. Written reviews point the same way: 56% of AudioLayer's written reviews are positive against 84% of NuRack Auv3 FX Processor's.

AudioLayer ships an update fortnightly, NuRack Auv3 FX Processor every 3 weeks. Both last shipped on October 15, 2026.

## The numbers

| Metric | AudioLayer | NuRack Auv3 FX Processor |
| --- | --- | --- |
| Price | $12.99 | **$7.99** |
| Rating | [4.4 (179 ratings)](https://appshunter.io/ios/app/audiolayer/id1381478666/reviews) | **[4.7 (42 ratings)](https://appshunter.io/ios/app/nurack-auv3-fx-processor/id1520146960/reviews)** |
| Number of ratings | **179** | 42 |
| Positive reviews | 55.6% of reviews | **84.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#197** |
| Size | 242 MB | 26 MB |
| Requires iOS | 13.0 | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### AudioLayer

[App page](https://appshunter.io/ios/app/audiolayer/id1381478666)

This app is a powerful mobile multi-sampler for music production, offering advanced features for creating and manipulating complex instruments. It integrates seamlessly with iOS production environments and supports iCloud for easy collaboration and storage.

**Highlights:** Streaming Sample Engine (SSE), Hierarchical Layer and Zone editing, Seamless Instrument Switching (SIS), Integrated audio sample recorder, Auto Sampler for hardware synths, AUv3 AudioUnit integration, iCloud storage and collaboration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SoundFont Import | $3.99 | one-time |

**What reviewers like**

- 🎹 Powerful multi-layer sampling capabilities
- 📥 EXS24 and SFZ file import support
- 🎯 Round-robin functionality for realistic instruments
- ⚡ Efficient performance on older devices
- 🎚️ Comprehensive effects rack with quality sound

**What reviewers complain about**

- 🐛 Frequent crashes across multiple iOS versions
- ⚠️ Stability issues in AUM and other hosts
- 🔌 High CPU/DSP usage causing performance spikes
- 🔋 Battery drain and device heating
- ❌ Missing undo function

**Reported bugs**

- App crashes on startup (splash screen)
- Reverb and chorus effects cause sound to disappear
- Pitch resets to -24 after stopping Logic Pro playback
- Layer voice polyphony controls not working properly
- SFZ batch import distributes samples incorrectly across layers

**Requested features**

- Time-stretching/pitch-shifting capability
- Program Change MIDI support
- Undo/Redo functionality
- GigaSampler .gig library support
- Soundfont SF2 import (now paid feature)


### NuRack Auv3 FX Processor

[App page](https://appshunter.io/ios/app/nurack-auv3-fx-processor/id1520146960)

**Currently charting:** #197 Top Paid · Music (US App Store)

Design custom audio and MIDI effects racks with over 80 building blocks. Route audio in series or parallel and create unique interfaces for your sound processing needs.

**Highlights:** Design custom effects racks, Over 80 audio and MIDI building blocks, Full routing control (series/parallel), Customizable interface builder, Seamless effect switching, 3 independent audio racks mode, Extensive automation options

**In-app purchases:** none


## Frequently asked questions

### Is AudioLayer free?

AudioLayer costs $12.99, and also offers in-app purchases.

### Is NuRack Auv3 FX Processor free?

NuRack Auv3 FX Processor costs $7.99, with no in-app purchases.

### Which has better reviews, AudioLayer or NuRack Auv3 FX Processor?

NuRack Auv3 FX Processor is rated higher. AudioLayer averages 4.4 out of 5 from 179 ratings, while NuRack Auv3 FX Processor averages 4.7 from 42 ratings.

### Do AudioLayer or NuRack Auv3 FX Processor have ads?

Neither AudioLayer nor NuRack Auv3 FX Processor shows ads.

### Which is updated more often, AudioLayer or NuRack Auv3 FX Processor?

AudioLayer ships an update fortnightly, and NuRack Auv3 FX Processor every 3 weeks. Most recently, AudioLayer was updated on October 15, 2026 and NuRack Auv3 FX Processor on October 15, 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.*