# Undulator vs BLEASS Motion FX

The clearest difference is rating: BLEASS Motion FX at 4.8 against Undulator's 4.3. BLEASS Motion FX also leads on review sentiment (100% vs 86%). Undulator's advantage is update cadence (every 2 months vs every 54 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Undulator costs $7.99 and BLEASS Motion FX $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BLEASS Motion FX holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 11 and 13 respectively. Written reviews point the same way: 86% of Undulator's written reviews are positive against 100% of BLEASS Motion FX's.

Undulator ships an update every 2 months, BLEASS Motion FX every 54 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Undulator | BLEASS Motion FX |
| --- | --- | --- |
| Price | $7.99 | $7.99 |
| Rating | [4.3 (11 ratings)](https://appshunter.io/ios/app/undulator/id1463822021/reviews) | **[4.8 (13 ratings)](https://appshunter.io/ios/app/bleass-motion-fx/id1551643475/reviews)** |
| Number of ratings | 11 | **13** |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 54 months |
| Monetization | Paid | Paid |
| Size | 16 MB | 28 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eventide](https://appshunter.io/developer/546518026) | [BLEASS](https://appshunter.io/developer/1220444177) |

## 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


### BLEASS Motion FX

[App page](https://appshunter.io/ios/app/bleass-motion-fx/id1551643475)

This app provides a creative workflow for sound design with 11 distinct effects. Dynamically modulate these effects using a versatile motion sequencer to explore new sonic territories. Load multiple instances for complex sound manipulation.

**Highlights:** 11 unique audio effects, Versatile motion sequencer, Dynamic parameter modulation, Load multiple instances, Cross-platform availability (iOS, Windows, macOS)

**In-app purchases:** none


## Frequently asked questions

### Is Undulator free?

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

### Is BLEASS Motion FX free?

BLEASS Motion FX costs $7.99, with no in-app purchases.

### Which has better reviews, Undulator or BLEASS Motion FX?

BLEASS Motion FX is rated higher. Undulator averages 4.3 out of 5 from 11 ratings, while BLEASS Motion FX averages 4.8 from 13 ratings.

### Do Undulator or BLEASS Motion FX have ads?

Neither Undulator nor BLEASS Motion FX shows ads.

### Which is updated more often, Undulator or BLEASS Motion FX?

Undulator ships an update every 2 months, and BLEASS Motion FX every 54 months. Most recently, Undulator was updated on October 14, 2026 and BLEASS Motion FX on October 7, 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.*