# WretchUp vs Theremin Synth

WretchUp and Theremin Synth both sit at 3.1 stars, but that hides the real split: 91% of WretchUp's written reviews are positive against 64% of Theremin Synth's. WretchUp also leads on update cadence (every 3 weeks vs every 2 months). Theremin Synth's advantage is price ($2.99 vs $4.99). On rating, ratings volume, ads and in-app purchases there is nothing between them.

WretchUp costs $4.99 and Theremin Synth $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 3.1 for WretchUp against 3.2 for Theremin Synth. Both are backed by a comparable volume of ratings — 9 and 6 respectively. Written reviews are what separate them: 91% of WretchUp's written reviews are positive against 64% of Theremin Synth's.

WretchUp ships an update every 3 weeks, Theremin Synth every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | WretchUp | Theremin Synth |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| Rating | [3.1 (9 ratings)](https://appshunter.io/ios/app/wretchup/id928543264/reviews) | **[3.2 (6 ratings)](https://appshunter.io/ios/app/theremin-synth-record-and-loop/id1104816326/reviews)** |
| Number of ratings | **9** | 6 |
| Positive reviews | **90.9% of reviews** | 63.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Paid | Paid |
| Size | 15 MB | 1 MB |
| Requires iOS | **11.0** | 12.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MoMinstruments GbR](https://appshunter.io/developer/953815356) | [Luke Phillips](https://appshunter.io/developer/1104816325) |

## What reviewers say

### WretchUp

[App page](https://appshunter.io/ios/app/wretchup/id928543264)

This app offers a unique audio manipulation experience, allowing users to create sonic mayhem with pitch-shifted delays, filters, and sampling. It's designed for live performance and studio use, enabling musicians and sound enthusiasts to generate wild noises and unique effects.

**Highlights:** Pitch-shifted delay with feedback and filter, Live performance-oriented controls, Gesture-based play, Record vocals and instruments, Sample and manipulate loops, Inter-App-Audio and Audiobus support

**Features:** Vision Pro support

**In-app purchases:** none


### Theremin Synth

[App page](https://appshunter.io/ios/app/theremin-synth-record-and-loop/id1104816326)

Create unique soundscapes with this multitouch synthesizer. Record, loop, and overdub your creations, then export them as WAV files to share. Experiment with various waveforms and effects for endless sonic possibilities.

**Highlights:** Multitouch synthesis, Record, loop, and overdub, Adjustable delay, feedback, and scuzz effects, Four waveform options, Export recordings as WAV files, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is WretchUp free?

WretchUp costs $4.99, with no in-app purchases.

### Is Theremin Synth free?

Theremin Synth costs $2.99, with no in-app purchases.

### Which has better reviews, WretchUp or Theremin Synth?

Theremin Synth is rated higher. WretchUp averages 3.1 out of 5 from 9 ratings, while Theremin Synth averages 3.2 from 6 ratings.

### Do WretchUp or Theremin Synth have ads?

Neither WretchUp nor Theremin Synth shows ads.

### Which is updated more often, WretchUp or Theremin Synth?

WretchUp ships an update every 3 weeks, and Theremin Synth every 2 months. Most recently, WretchUp was updated on October 24, 2026 and Theremin Synth on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*