# IU I vs KFC

The clearest difference is update cadence: KFC at every 2 weeks against IU I's every 3 months. 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.

IU I ships an update every 3 months, KFC every 2 weeks. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | IU I | KFC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/iu-i-ke/id1620771639/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 72.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 18 MB | 22 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | iPhone | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Sang Min Jo](https://appshunter.io/developer/1620771452) | [JEONG KYU Baek](https://appshunter.io/developer/1596868219) |

## What reviewers say

### IU I

[App page](https://appshunter.io/ios/app/iu-i-ke/id1620771639)

This application synchronizes with IU music videos and content, allowing your official lightstick to be controlled for a personalized concert experience anywhere. Show your support by waving your lightstick in time with the music.

**Highlights:** Lightstick synchronization with music videos, Personalized concert experience, Fan support tool, Online exclusive service

**Features:** Vision Pro support

**In-app purchases:** none


### KFC

[App page](https://appshunter.io/ios/app/kfc-checkin/id6741016708)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IU I free?

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

### Is KFC free?

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

### Do IU I or KFC have ads?

Neither IU I nor KFC shows ads.

### Which is updated more often, IU I or KFC?

IU I ships an update every 3 months, and KFC every 2 weeks. Most recently, IU I was updated on October 6, 2026 and KFC on October 3, 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.*