---
title: "Diagram - Reviews, Revenue and Downloads in South Korea | Apple App Store"
description: "'Diagram'은 철도 기관사 등 교번 근무자를 위해 특화된 직관적인 교번 달력 앱입니다. 불필요한 일정 등록이나 꾸미기 기능은 과감히 빼고, 오직 정확한 교번 확인과 업무 편의성에만 집중했습니다."
---

# Diagram — South Korea

![Diagram App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/29/cf/94/29cf94c2-f6d4-8d14-c6cc-4af67c9e0a35/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/434x0w.png)

**Developer:** [JUN SOO LEE](https://apptail.io/developer/jun-soo-lee-ETNEkc)
**Category:** Productivity
**Rating:** 5.0/5 (2 ratings)
**Price:** Free
**Bundle ID:** l.j.s
**Store:** Apple App Store
**Country:** South Korea
**Version:** 1.0.127 (released 2026-10-23)
**Original Release:** 2026-05-20
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/kr/app/app/id6770277695)
**AppTail Page:** [https://apptail.io/app/diagram-mYXz/south-korea](https://apptail.io/app/diagram-mYXz/south-korea)

## Diagram Description
'Diagram'은 철도 기관사 등 교번 근무자를 위해 특화된 직관적인 교번 달력 앱입니다. 불필요한 일정 등록이나 꾸미기 기능은 과감히 빼고, 오직 정확한 교번 확인과 업무 편의성에만 집중했습니다.

## Diagram Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/cd/b9/2c/cdb92cee-4c55-8475-3915-e2afc974ef16/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-05-19_at_00.10.59.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/cf/9e/5f/cf9e5f5a-78e8-3272-3464-591a4487be1d/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-05-19_at_00.13.37.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/c0/1f/d6/c01fd6e8-6ea6-e27d-ed25-9680d0a270c7/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-05-19_at_00.12.47.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/c5/e1/3b/c5e13b68-6bb1-7d54-a975-7affe1a69b9c/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-05-19_at_00.10.48.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f3/1b/31/f31b31dc-4044-fa1c-3a5c-13f4577a85f4/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-05-19_at_00.12.58.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/85/9d/38/859d382e-bade-e5ee-cb4b-bc5c869b58c6/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-05-19_at_00.12.01.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/51/e2/77/51e27778-d824-ddfe-a84e-c57464b46491/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-05-19_at_00.12.25.png/1284x2778.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d8/e0/da/d8e0da42-65c3-f5ad-c48c-56fbf2ddb4de/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-05-19_at_00.11.49.png/1284x2778.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/dd/76/65/dd76654a-2592-9539-e95b-123479c110f0/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-05-19_at_00.12.06.png/1284x2778.png)

## Diagram Rating Breakdown in South Korea
- 5 stars: 2 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)





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## Diagram Available In
- [South Korea](https://apptail.io/app/diagram-mYXz/south-korea)
- [United Arab Emirates](https://apptail.io/app/diagram-mYXz/united-arab-emirates)
- [Philippines](https://apptail.io/app/diagram-mYXz/philippines)

---

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*Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*