# 블랙야크 알파인 클럽 BAC vs tcall교원안심번호

The clearest difference is ads: tcall교원안심번호 at none against 블랙야크 알파인 클럽 BAC's shown. tcall교원안심번호 also leads on monetization model (free vs free with in-app purchases) and iOS requirement (13.0 vs 15.6). 블랙야크 알파인 클럽 BAC's advantage is review sentiment (23% vs 0%). On price, update cadence, 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.

블랙야크 알파인 클럽 BAC ships an update every 3 weeks, tcall교원안심번호 fortnightly. The most recent releases landed on October 14, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | 블랙야크 알파인 클럽 BAC | tcall교원안심번호 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/bac/id1328731534/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **23.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 118 MB | 8 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [(주)블랙야크](https://appshunter.io/developer/456148390) | [yang minjong](https://appshunter.io/developer/1554022510) |

## What reviewers say

### 블랙야크 알파인 클럽 BAC

[App page](https://appshunter.io/ios/app/bac/id1328731534)

This app is a social activity platform for exploring Korea's mountains and islands. Users can join free challenges, share their outdoor experiences, and connect with others. It offers various programs like 'Famous Mountains 100' and 'Island & Mountain' for users to track their progress and achievements.

**Highlights:** Join hiking and outdoor challenges, Track mountain and island certifications, View certification point locations, See recent hiking activity feeds, Join regional challenge clubs, Purchase commemorative patches and merchandise

**In-app purchases:** none


### tcall교원안심번호

[App page](https://appshunter.io/ios/app/tcall/id1554022508)

Facilitates communication between teachers and parents/students through posts, comments, SMS, and calls. Requires registration with the "New Teacher Safe Number" service to use.

**Highlights:** Class bulletin board, Send calls/SMS, Push notifications, Post and comment functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 블랙야크 알파인 클럽 BAC free?

블랙야크 알파인 클럽 BAC is free to download, with no in-app purchases.

### Is tcall교원안심번호 free?

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

### Do 블랙야크 알파인 클럽 BAC or tcall교원안심번호 have ads?

블랙야크 알파인 클럽 BAC shows ads; tcall교원안심번호 does not.

### Which is updated more often, 블랙야크 알파인 클럽 BAC or tcall교원안심번호?

블랙야크 알파인 클럽 BAC ships an update every 3 weeks, and tcall교원안심번호 fortnightly. Most recently, 블랙야크 알파인 클럽 BAC was updated on October 14, 2026 and tcall교원안심번호 on September 29, 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.*