# SOS누르미 vs CH2CH 온라인서비스

The clearest difference is review sentiment: SOS누르미 at 92% against CH2CH 온라인서비스's 33%. SOS누르미 also leads on iOS requirement (9.0 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.

SOS누르미 ships an update every 5 months, CH2CH 온라인서비스 every 3 months. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SOS누르미 | CH2CH 온라인서비스 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **92.3% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 56 MB | 26 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [openit Inc.](https://appshunter.io/developer/1049669881) | [Kyungjin Seo](https://appshunter.io/developer/1291192388) |

## What reviewers say

### SOS누르미

[App page](https://appshunter.io/ios/app/sos/id1050081352)

This app provides safety features for personal security. It offers a fake call function to simulate incoming calls, a whistle alert with various sound options for emergencies, and an internet fraud lookup to check for scam reports. It also includes weather information to help prevent accidents.

**Highlights:** Fake call simulation, Emergency whistle alert, Internet fraud lookup, Weather information, Personal security features

**Features:** macOS Compatibility

**In-app purchases:** none


### CH2CH 온라인서비스

[App page](https://appshunter.io/ios/app/ch2ch/id1296151998)

Connect with your church community through this app. Manage your church records, apply for training, view donation history, and access missionary updates. It facilitates communication between members and the church.

**Highlights:** Church record management, Training application and tracking, Donation history and certificate issuance, Missionary support information, Member directory and business listings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SOS누르미 free?

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

### Is CH2CH 온라인서비스 free?

CH2CH 온라인서비스 is free to download, with no in-app purchases.

### Do SOS누르미 or CH2CH 온라인서비스 have ads?

Neither SOS누르미 nor CH2CH 온라인서비스 shows ads.

### Which is updated more often, SOS누르미 or CH2CH 온라인서비스?

SOS누르미 ships an update every 5 months, and CH2CH 온라인서비스 every 3 months. Most recently, SOS누르미 was updated on September 9, 2026 and CH2CH 온라인서비스 on September 10, 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.*