# K vs LF

The clearest difference is update cadence: K at every 3 weeks against LF's every 4 months. K also leads on iOS requirement (8.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

K ships an update every 3 weeks, LF every 4 months. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | K | LF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/k-audio-i/id1228560758/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free | — |
| Size | 5 MB | 27 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [泳涛 周](https://appshunter.io/developer/713061925) | [Guangzhou Yuexin Sound Technology Co., Ltd](https://appshunter.io/developer/1833380008) |

## 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


### LF

[App page](https://appshunter.io/ios/app/lf/id6756494549)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is K free?

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

### Is LF free?

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

### Do K or LF have ads?

Neither K nor LF shows ads.

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

K ships an update every 3 weeks, and LF every 4 months. Most recently, K was updated on October 5, 2026 and LF on October 4, 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.*