# 3LINEDIARY vs tcall교원안심번호

The clearest difference is review sentiment: 3LINEDIARY at 85% against tcall교원안심번호's 0%. tcall교원안심번호's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. 3LINEDIARY sells 1 in-app purchase, starting at $2.99 per month. tcall교원안심번호 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | 3LINEDIARY | tcall교원안심번호 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (48 ratings)](https://appshunter.io/ios/app/3linediary/id1436460302/reviews)** | — |
| Number of ratings | **48** | — |
| Positive reviews | **84.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Freemium | **Free** |
| Size | 88 MB | 8 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [(주)윌림](https://appshunter.io/developer/1436460301) | [yang minjong](https://appshunter.io/developer/1554022510) |

## What reviewers say

### 3LINEDIARY

[App page](https://appshunter.io/ios/app/3linediary/id1436460302)

This app offers a simple journaling experience focused on positivity and mindfulness. Capture daily thoughts with brief entries and optional photos, create multiple private or public diaries, and connect with a supportive community through shared writing and engagement.

**Highlights:** Three-line daily entries, Optional photo attachments, Multiple private diaries, Public diary sharing (anonymous option), Community engagement (likes, comments), Shared diaries with friends/family, Customizable reminders

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ‘Friends' Subscription | $2.99 | per month |


### 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 3LINEDIARY free?

3LINEDIARY is free to download, with in-app purchases available.

### Is tcall교원안심번호 free?

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

### Do 3LINEDIARY or tcall교원안심번호 have ads?

3LINEDIARY shows ads; tcall교원안심번호 does not.

### Which is updated more often, 3LINEDIARY or tcall교원안심번호?

3LINEDIARY ships an update fortnightly, and tcall교원안심번호 fortnightly. Most recently, 3LINEDIARY was updated on October 13, 2026 and tcall교원안심번호 on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*