# Undulator vs MP1 Pro

The clearest difference is update cadence: Undulator at every 2 months against MP1 Pro's every 44 months. Undulator also leads on price ($7.99 vs $9.99) and iOS requirement (11.0 vs 15). MP1 Pro's advantage is rating (4.6 vs 4.3). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Undulator costs $7.99 and MP1 Pro $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MP1 Pro holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 11 and 9 respectively. Written reviews complicate that: 86% of Undulator's written reviews are positive against 80% of MP1 Pro'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, MP1 Pro every 44 months. The most recent releases landed on September 21, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Undulator | MP1 Pro |
| --- | --- | --- |
| Price | **$7.99** | $9.99 |
| Rating | [4.3 (11 ratings)](https://appshunter.io/ios/app/undulator/id1463822021/reviews) | **[4.6 (9 ratings)](https://appshunter.io/ios/app/mp1-pro/id1661963427/reviews)** |
| Number of ratings | **11** | 9 |
| Positive reviews | **85.7% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 44 months |
| Monetization | Paid | Paid |
| Size | 16 MB | 28 MB |
| Requires iOS | **11.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eventide](https://appshunter.io/developer/546518026) | [Nembrini Audio](https://appshunter.io/developer/1493296895) |

## 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


### MP1 Pro

[App page](https://appshunter.io/ios/app/mp1-pro/id1661963427)

This app emulates a classic guitar preamplifier, offering versatile tone shaping with virtual tube circuits, a digital delay, and analog modulations. It includes a power amplifier, reverb, noise gate, and compressor for comprehensive sound control.

**Highlights:** Tri-State Voicing selection (Distortion Tube, Clean Tube, Solid State), Four EL34 virtual tubes in power amplifier, Digital delay with Lo-Fi and offset controls, Analog Chorus or Tremolo modulation, Hall reverb algorithm, Tight, Low cut, and High cut filters, Analog noise gate, Studio compressor

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Undulator free?

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

### Is MP1 Pro free?

MP1 Pro costs $9.99, with no in-app purchases.

### Which has better reviews, Undulator or MP1 Pro?

MP1 Pro is rated higher. Undulator averages 4.3 out of 5 from 11 ratings, while MP1 Pro averages 4.6 from 9 ratings.

### Do Undulator or MP1 Pro have ads?

Neither Undulator nor MP1 Pro shows ads.

### Which is updated more often, Undulator or MP1 Pro?

Undulator ships an update every 2 months, and MP1 Pro every 44 months. Most recently, Undulator was updated on September 21, 2026 and MP1 Pro on September 28, 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.*