# AulDelay vs AU EngineCore

The clearest difference is price: AulDelay at $1.99 against AU EngineCore's $22.99. AulDelay also leads on device support (4 vs 2) and iOS requirement (12.0 vs 16.6). On update cadence, ads and in-app purchases there is nothing between them.

AulDelay costs $1.99 and AU EngineCore $22.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AulDelay ships an update every 3 days, AU EngineCore weekly. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | AulDelay | AU EngineCore |
| --- | --- | --- |
| Price | **$1.99** | $22.99 |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/auldelay/id6743680956/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Paid | — |
| Size | 12 MB | 13 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rob Jackson](https://appshunter.io/developer/1072346998) | [Antonio Sorin TASU](https://appshunter.io/developer/1883473854) |

## What reviewers say

### AulDelay

[App page](https://appshunter.io/ios/app/auldelay/id6743680956)

This audio effect plugin offers a vintage-inspired stereo delay with extensive customization. Achieve classic retro tones through built-in filtering, modulation, and compression, perfect for creative sound design and live looping.

**Highlights:** Vintage-inspired delay effect, Stereo delay with L:R ratio control, Delay time modulation, Internal highpass and lowpass filtering, Compression and limiting for retro sound, Up to 8 seconds delay time, Standalone or AUv3 host compatible

**In-app purchases:** none


### AU EngineCore

[App page](https://appshunter.io/ios/app/au-enginecore/id6766300671)

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

**In-app purchases:** none


## Frequently asked questions

### Is AulDelay free?

AulDelay costs $1.99, with no in-app purchases.

### Is AU EngineCore free?

AU EngineCore costs $22.99, with no in-app purchases.

### Do AulDelay or AU EngineCore have ads?

Neither AulDelay nor AU EngineCore shows ads.

### Which is updated more often, AulDelay or AU EngineCore?

AulDelay ships an update every 3 days, and AU EngineCore weekly. Most recently, AulDelay was updated on September 30, 2026 and AU EngineCore on October 8, 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.*