# Undulator vs EG ClassicFX AU3 Multi effects

The clearest difference is update cadence: EG ClassicFX AU3 Multi effects at every 3 days against Undulator's every 2 months. EG ClassicFX AU3 Multi effects also leads on rating (4.7 vs 4.3) and price ($3.99 vs $7.99). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Undulator costs $7.99 and EG ClassicFX AU3 Multi effects $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EG ClassicFX AU3 Multi effects holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 12 and 6 respectively. Written reviews complicate that: 86% of Undulator's written reviews are positive against 80% of EG ClassicFX AU3 Multi effects's, so the app with the better star average is not the one people write more warmly about.

Undulator ships an update every 2 months, EG ClassicFX AU3 Multi effects every 3 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Undulator | EG ClassicFX AU3 Multi effects |
| --- | --- | --- |
| Price | $7.99 | **$3.99** |
| Rating | [4.3 (12 ratings)](https://appshunter.io/ios/app/undulator/id1463822021/reviews) | **[4.7 (6 ratings)](https://appshunter.io/ios/app/eg-classicfx-au3-multi-effects/id1547231868/reviews)** |
| Number of ratings | **12** | 6 |
| Positive reviews | **85.7% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Paid | Paid |
| Size | 16 MB | 30 MB |
| Requires iOS | 11.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eventide](https://appshunter.io/developer/546518026) | [Elliott Garage](https://appshunter.io/developer/454709866) |

## What reviewers say

### Undulator

[App page](https://appshunter.io/ios/app/undulator/id1463822021)

This app offers a classic modulated tremolo effect inspired by a renowned hardware processor. It allows musicians to add rhythmic movement, ethereal feedback, and detuned echoes to various instruments and samples, creating evolving soundscapes and dynamic textures.

**Highlights:** Modulated tremolo effect, Ethereal feedback and detuned echoes, AM/FM modulation, Tempo sync, Real-time ribbon control, Multiple modulation waveforms

**In-app purchases:** none


### EG ClassicFX AU3 Multi effects

[App page](https://appshunter.io/ios/app/eg-classicfx-au3-multi-effects/id1547231868)

This audio effects app provides a suite of classic effects like reverb, delay, and chorus for music production. It allows for deep customization of each effect and offers advanced features like AU3 multi-output and MIDI CC automation. It requires a compatible host app to function.

**Highlights:** 8 classic audio effects, Tweakable effects with bypass, AU3 multi-output support, MIDI CC automation, Multitouch effect modulation, Live mode for on-the-fly effects, Reorderable effect chain, Preset saving

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

**In-app purchases:** none


## Frequently asked questions

### Is Undulator free?

Undulator costs $7.99, with no in-app purchases.

### Is EG ClassicFX AU3 Multi effects free?

EG ClassicFX AU3 Multi effects costs $3.99, with no in-app purchases.

### Which has better reviews, Undulator or EG ClassicFX AU3 Multi effects?

EG ClassicFX AU3 Multi effects is rated higher. Undulator averages 4.3 out of 5 from 12 ratings, while EG ClassicFX AU3 Multi effects averages 4.7 from 6 ratings.

### Do Undulator or EG ClassicFX AU3 Multi effects have ads?

Neither Undulator nor EG ClassicFX AU3 Multi effects shows ads.

### Which is updated more often, Undulator or EG ClassicFX AU3 Multi effects?

Undulator ships an update every 2 months, and EG ClassicFX AU3 Multi effects every 3 days. Most recently, Undulator was updated on November 3, 2026 and EG ClassicFX AU3 Multi effects on November 3, 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.*