# S2B알리미 vs LooKC

The clearest difference is review sentiment: LooKC at 80% against S2B알리미's 33%. S2B알리미's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9 vs 15.0). 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.

S2B알리미 ships an update every 3 months, LooKC every 6 weeks. The most recent releases landed on August 25, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | S2B알리미 | LooKC |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 36 MB |
| Requires iOS | **9** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KTCU](https://appshunter.io/developer/427138022) | [ICTCompliance.Co., Ltd.](https://appshunter.io/developer/1632344595) |

## What reviewers say

### S2B알리미

[App page](https://appshunter.io/ios/app/s2b/id1291194545)

Receive important S2B service notifications directly on your mobile device. This app provides a list of alerts, message search, and customizable notification settings. It ensures you stay informed about service updates with an etiquette time feature.

**Highlights:** Push notification service, Notification list and details, Message search functionality, Category-based message settings, Etiquette time setting

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

**In-app purchases:** none


### LooKC

[App page](https://appshunter.io/ios/app/lookc-kc/id1632344593)

Simplify and streamline the KC certification process from your mobile device. Access all necessary information, perform detailed searches, and save favorite products for easy reference. Available 24/7 from anywhere in the world.

**Highlights:** 24/7 access to certification information, Easy keyword search for products, Detailed search with product specifications, Save favorite products, Streamlined KC certification process

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is S2B알리미 free?

S2B알리미 is free to download, with no in-app purchases.

### Is LooKC free?

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

### Do S2B알리미 or LooKC have ads?

Neither S2B알리미 nor LooKC shows ads.

### Which is updated more often, S2B알리미 or LooKC?

S2B알리미 ships an update every 3 months, and LooKC every 6 weeks. Most recently, S2B알리미 was updated on August 25, 2026 and LooKC on September 6, 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.*