# Duets.fm vs LH Grey

The clearest difference is rating: LH Grey at 5.0 against Duets.fm's 4.6. LH Grey also leads on review sentiment (100% vs 75%) and iOS requirement (13.0 vs 15.0). Duets.fm's advantage is ratings volume (30 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LH Grey holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Duets.fm has 30 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 75% of Duets.fm's written reviews are positive against 100% of LH Grey's.

## The numbers

| Metric | Duets.fm | LH Grey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (30 ratings)](https://appshunter.io/ios/app/duetsfm/id6463237649/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/lh-grey/id6478848911/reviews)** |
| Number of ratings | **30** | 2 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Free | Free |
| Size | 36 MB | 10 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [QuantumBytes LLC](https://appshunter.io/developer/1704171247) | [昊 刘](https://appshunter.io/developer/652348004) |

## What reviewers say

### Duets.fm

[App page](https://appshunter.io/ios/app/duetsfm/id6463237649)

Enhance your Smule singing experience with this companion app. Discover new songs, create custom playlists, and download them for offline playback. Track your performance history and analyze your collaborations with other singers.

**Highlights:** Random song mixes, Custom playlist creation, Offline song downloads, Advanced song/singer search, Join and solo history tracking, Singer follow/follower analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### LH Grey

[App page](https://appshunter.io/ios/app/lh-grey/id6478848911)

This app offers a powerful analog synthesizer experience with two voltage-controlled oscillators and a classic filter section. Explore a range of high-quality effects like unison, chorus, reverb, and delay to sculpt unique sounds for your music.

**Highlights:** Two voltage-controlled oscillators (VCOs), Classic analog filter section, Unison, chorus, reverb, and delay effects, Intuitive and user-friendly interface, Focus on direct sound creation

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

**In-app purchases:** none


## Frequently asked questions

### Is Duets.fm free?

Duets.fm is free to download, with no in-app purchases.

### Is LH Grey free?

LH Grey is free to download, with no in-app purchases.

### Which has better reviews, Duets.fm or LH Grey?

LH Grey is rated higher. Duets.fm averages 4.6 out of 5 from 30 ratings, while LH Grey averages 5.0 from 2 ratings.

### Do Duets.fm or LH Grey have ads?

Neither Duets.fm nor LH Grey shows ads.

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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.*