# SynthScaper LE vs Undulator

The clearest difference is rating: SynthScaper LE at 4.7 against Undulator's 4.3. SynthScaper LE also leads on update cadence (every 3 weeks vs every 2 months) and price ($4.99 vs $7.99). Undulator's advantage is review sentiment (86% vs 73%). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

SynthScaper LE costs $4.99 and Undulator $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SynthScaper LE holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 24 and 11 respectively. Written reviews complicate that: 73% of SynthScaper LE's written reviews are positive against 86% of Undulator's, so the app with the better star average is not the one people write more warmly about.

SynthScaper LE ships an update every 3 weeks, Undulator every 2 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SynthScaper LE | Undulator |
| --- | --- | --- |
| Price | **$4.99** | $7.99 |
| Rating | **[4.7 (24 ratings)](https://appshunter.io/ios/app/synthscaper-le/id1445569079/reviews)** | [4.3 (11 ratings)](https://appshunter.io/ios/app/undulator/id1463822021/reviews) |
| Number of ratings | **24** | 11 |
| Positive reviews | 72.7% of reviews | **85.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Paid | Paid |
| Size | 94 MB | 16 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Igor Vasiliev](https://appshunter.io/developer/424401626) | [Eventide](https://appshunter.io/developer/546518026) |

## What reviewers say

### SynthScaper LE

[App page](https://appshunter.io/ios/app/synthscaper-le/id1445569079)

Create lush pads, psychedelic synths, and atmospheric soundscapes with a powerful, easy-to-use sound engine. Design unique multi-timbral scenes with three independent generators, a spatial mixer, and a versatile screen keyboard. Supports MIDI controllers and works standalone or with DAWs.

**Highlights:** Multitimbral sound engine, Three independent sound generators, Spatial mixer with reverb simulation, Advanced screen keyboard with continuous tone control, Sequencer/arpeggiator per generator, Full MIDI keyboard and controller support, AUv3 and Inter-App audio compatible

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is SynthScaper LE free?

SynthScaper LE costs $4.99, with no in-app purchases.

### Is Undulator free?

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

### Which has better reviews, SynthScaper LE or Undulator?

SynthScaper LE is rated higher. SynthScaper LE averages 4.7 out of 5 from 24 ratings, while Undulator averages 4.3 from 11 ratings.

### Do SynthScaper LE or Undulator have ads?

Neither SynthScaper LE nor Undulator shows ads.

### Which is updated more often, SynthScaper LE or Undulator?

SynthScaper LE ships an update every 3 weeks, and Undulator every 2 months. Most recently, SynthScaper LE was updated on October 9, 2026 and Undulator 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.*