# S2B알리미 vs 온채널앱

The clearest difference is iOS requirement: S2B알리미 at 9 against 온채널앱's 15.1. 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.

S2B알리미 ships an update every 3 months, 온채널앱 every 4 months. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | S2B알리미 | 온채널앱 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 3 MB | 33 MB |
| Requires iOS | **9** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KTCU](https://appshunter.io/developer/427138022) | [HONGKYUN KIM](https://appshunter.io/developer/1627870839) |

## 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


### 온채널앱

[App page](https://appshunter.io/ios/app/id6754137241)

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

**In-app purchases:** none


## Frequently asked questions

### Is S2B알리미 free?

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

### Is 온채널앱 free?

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

### Do S2B알리미 or 온채널앱 have ads?

Neither S2B알리미 nor 온채널앱 shows ads.

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

S2B알리미 ships an update every 3 months, and 온채널앱 every 4 months. Most recently, S2B알리미 was updated on October 18, 2026 and 온채널앱 on October 16, 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.*