# K vs LightElf

The clearest difference is rating: K at 5.0 against LightElf's 3.0. K also leads on iOS requirement (8.0 vs 13.0). LightElf's advantage is ratings volume (20 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

K holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: LightElf has 20 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on September 17, 2026.

## The numbers

| Metric | K | LightElf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/k-audio-i/id1228560758/reviews)** | [3.0 (20 ratings)](https://appshunter.io/ios/app/lightelf/id6475085602/reviews) |
| Number of ratings | 1 | **20** |
| Positive reviews | — | 15.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 5 MB | 60 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [泳涛 周](https://appshunter.io/developer/713061925) | [广文 李](https://appshunter.io/developer/1723107479) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-audio-i/id1228560758)

This app provides wireless control and management for a karaoke pre-amplifier audio processor. It offers a simplified interface for iPhone users, allowing for easy operation of audio settings.

**Highlights:** Wireless control, Audio processor management, Simplified interface, iPhone compatibility

**In-app purchases:** none


### LightElf

[App page](https://appshunter.io/ios/app/lightelf/id6475085602)

Control Bluetooth-connected laser light devices to customize display parameters. Features include hand-drawn graffiti functionality for personalized light shows.

**Highlights:** Bluetooth laser light control, Display parameter customization, Hand-drawn graffiti feature, Personalized light shows

**In-app purchases:** none


## Frequently asked questions

### Is K free?

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

### Is LightElf free?

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

### Which has better reviews, K or LightElf?

K is rated higher. K averages 5.0 out of 5 from 1 ratings, while LightElf averages 3.0 from 20 ratings.

### Do K or LightElf have ads?

Neither K nor LightElf shows ads.

### Which is updated more often, K or LightElf?

K ships an update every 3 weeks, and LightElf every 3 weeks. Most recently, K was updated on September 17, 2026 and LightElf on September 17, 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.*