# UltraTap Delay vs AU3FX

The clearest difference is price: AU3FX at $5.99 against UltraTap Delay's $14.99. AU3FX also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 88%). UltraTap Delay's advantage is update cadence (every 2 months vs every 6 months). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

UltraTap Delay costs $14.99 and AU3FX $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AU3FX holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 20 and 20 respectively. Written reviews point the same way: 88% of UltraTap Delay's written reviews are positive against 100% of AU3FX's.

UltraTap Delay ships an update every 2 months, AU3FX every 6 months. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | UltraTap Delay | AU3FX |
| --- | --- | --- |
| Price | $14.99 | **$5.99** |
| Rating | [4.8 (20 ratings)](https://appshunter.io/ios/app/ultratap-delay/id1463784516/reviews) | **[5.0 (20 ratings)](https://appshunter.io/ios/app/au3fxdub/id1542042948/reviews)** |
| Number of ratings | 20 | 20 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Paid | Paid |
| Size | 23 MB | 2 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eventide](https://appshunter.io/developer/546518026) | [Kymatica AB](https://appshunter.io/developer/522046659) |

## What reviewers say

### UltraTap Delay

[App page](https://appshunter.io/ios/app/ultratap-delay/id1463784516)

Create rhythmic delays, glitchy reverbs, and evolving soundscapes with up to 64 taps. This app offers unique controls for shaping sound, including LFOs, envelopes, and a "Slurm" control for smearing and modulation. Explore over 150 inspiring presets and innovative performance features.

**Highlights:** Up to 64 taps for complex delays, Spread knob for rhythmic spacing, LFOs and envelopes for stutter effects, Slurm control for unique modulation, Stereo image control, Over 150 presets, Ribbon and Hotswitch controls

**In-app purchases:** none


### AU3FX

[App page](https://appshunter.io/ios/app/au3fxdub/id1542042948)

This audio effect plugin offers a highly customizable stereo delay, capable of producing a wide spectrum of sounds from clean digital echoes to distorted dub effects and flangers. It features a 32-bit DSP engine with extensive tweakable parameters, tape simulation, and filters for unique sonic textures.

**Highlights:** Highly tweakable stereo delay, 32-bit DSP engine, Tape simulation (noise and warble), Filters in delay loop, Stereo, detune, and ping-pong modes, Dual LFO for modulation, Bundled presets and user presets

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is UltraTap Delay free?

UltraTap Delay costs $14.99, with no in-app purchases.

### Is AU3FX free?

AU3FX costs $5.99, with no in-app purchases.

### Which has better reviews, UltraTap Delay or AU3FX?

AU3FX is rated higher. UltraTap Delay averages 4.8 out of 5 from 20 ratings, while AU3FX averages 5.0 from 20 ratings.

### Do UltraTap Delay or AU3FX have ads?

Neither UltraTap Delay nor AU3FX shows ads.

### Which is updated more often, UltraTap Delay or AU3FX?

UltraTap Delay ships an update every 2 months, and AU3FX every 6 months. Most recently, UltraTap Delay was updated on October 14, 2026 and AU3FX on October 13, 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.*