# Undulator vs BLEASS Dragonfly

The clearest difference is rating: BLEASS Dragonfly at 4.8 against Undulator's 4.3. BLEASS Dragonfly also leads on review sentiment (100% vs 86%). Undulator's advantage is update cadence (every 2 months vs every 24 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

BLEASS Dragonfly holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 11 and 17 respectively. Written reviews point the same way: 86% of Undulator's written reviews are positive against 100% of BLEASS Dragonfly's.

Undulator ships an update every 2 months, BLEASS Dragonfly every 24 months. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Undulator | BLEASS Dragonfly |
| --- | --- | --- |
| Price | $7.99 | $7.99 |
| Rating | [4.3 (11 ratings)](https://appshunter.io/ios/app/undulator/id1463822021/reviews) | **[4.8 (17 ratings)](https://appshunter.io/ios/app/bleass-dragonfly/id1580935730/reviews)** |
| Number of ratings | 11 | **17** |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 24 months |
| Monetization | Paid | Paid |
| Size | 16 MB | 27 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) | [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 Dragonfly

[App page](https://appshunter.io/ios/app/bleass-dragonfly/id1580935730)

This audio effect plugin offers a unique approach to tremolo, allowing music producers to add dynamic modulation to synths, vocals, and melodies. It syncs tremolo effects with input frequencies, MIDI notes, or sidechained signals for creative sonic textures.

**Highlights:** Pitch tracking for self or sidechain modes, MIDI input for precise triggering, Manual rate and amplitude control, Adjustable smoothing, stereo, attack, and release, Wild mode for saturation and waveshaping, Animated visualization of effect rate

**In-app purchases:** none


## Frequently asked questions

### Is Undulator free?

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

### Is BLEASS Dragonfly free?

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

### Which has better reviews, Undulator or BLEASS Dragonfly?

BLEASS Dragonfly is rated higher. Undulator averages 4.3 out of 5 from 11 ratings, while BLEASS Dragonfly averages 4.8 from 17 ratings.

### Do Undulator or BLEASS Dragonfly have ads?

Neither Undulator nor BLEASS Dragonfly shows ads.

### Which is updated more often, Undulator or BLEASS Dragonfly?

Undulator ships an update every 2 months, and BLEASS Dragonfly every 24 months. Most recently, Undulator was updated on October 14, 2026 and BLEASS Dragonfly on October 18, 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.*