# Sparkle vs WretchUp

The clearest difference is rating: Sparkle at 5.0 against WretchUp's 3.1. Sparkle also leads on ratings volume (48 vs 9). WretchUp's advantage is price ($4.99 vs $9.99) and update cadence (every 3 weeks vs every 6 weeks). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Sparkle costs $9.99 and WretchUp $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sparkle holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Sparkle has 48 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 96% of Sparkle's written reviews are positive against 91% of WretchUp's.

Sparkle ships an update every 6 weeks, WretchUp every 3 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sparkle | WretchUp |
| --- | --- | --- |
| Price | $9.99 | **$4.99** |
| Rating | **[5.0 (48 ratings)](https://appshunter.io/ios/app/sparkle-cross-synthesis/id818477094/reviews)** | [3.1 (9 ratings)](https://appshunter.io/ios/app/wretchup/id928543264/reviews) |
| Number of ratings | **48** | 9 |
| Positive reviews | **95.8% of reviews** | 90.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 37 MB | 15 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [apeSoft](https://appshunter.io/developer/464660782) | [MoMinstruments GbR](https://appshunter.io/developer/953815356) |

## What reviewers say

### Sparkle

[App page](https://appshunter.io/ios/app/sparkle-cross-synthesis/id818477094)

Transform audio by transferring the temporal structure of one sound to another while preserving spectral properties. Create unique sound transformations with advanced spectral hybridization algorithms. Ideal for musicians and sound designers seeking innovative audio manipulation.

**Highlights:** Spectral hybridization, Envelope preservation, Phase-sync processing, High-quality sound transformations, Temporal structure transfer, Spectral property preservation

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Sparkle free?

Sparkle costs $9.99, with no in-app purchases.

### Is WretchUp free?

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

### Which has better reviews, Sparkle or WretchUp?

Sparkle is rated higher. Sparkle averages 5.0 out of 5 from 48 ratings, while WretchUp averages 3.1 from 9 ratings.

### Do Sparkle or WretchUp have ads?

Neither Sparkle nor WretchUp shows ads.

### Which is updated more often, Sparkle or WretchUp?

Sparkle ships an update every 6 weeks, and WretchUp every 3 weeks. Most recently, Sparkle was updated on October 29, 2026 and WretchUp on October 24, 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.*