---
title: "윤진원의오뚜기 - Reviews, Revenue and Downloads in South Korea | Apple App Store"
description: "비싼 문제집, 무거운 가방은 이제 그만. 스마트폰으로 언제 어디서나 자료해석 계산 감각을 단련하세요.  • 사칙연산 훈련: 한 자리수~다섯 자리수의 덧셈·뺄셈·곱셈·나눗셈 • 비교훈련: 분수 비교, 곱셈 비교, 덧셈 비교, 증가율·감소율 비교, 배수 비교, 다항 덧셈 • 기출훈련: 실제 자료해석 기출에 출제된 비교 선지 수록 • 학습 통계: 정답률·풀이 시"
---

# 윤진원의오뚜기 — South Korea
> 자료해석계산훈련

![윤진원의오뚜기 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/fb/70/de/fb70dee5-bc1c-129e-75f5-5e656ef69737/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Unknown](https://apptail.io/developer/unknown-aJXLS)
**Category:** Education
**Rating:** 3.9/5 (7 ratings)
**Price:** Free
**Bundle ID:** com.mostlyclear.calculationpractice
**Store:** Apple App Store
**Country:** South Korea
**Version:** 4.0.0 (released 2026-10-09)
**Original Release:** 2026-09-20
**Languages:** English, Korean

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/kr/app/app/id6751992934)
**AppTail Page:** [https://apptail.io/app/app-cmRw/south-korea](https://apptail.io/app/app-cmRw/south-korea)

## 윤진원의오뚜기 Description
비싼 문제집, 무거운 가방은 이제 그만.
스마트폰으로 언제 어디서나 자료해석 계산 감각을 단련하세요.

• 사칙연산 훈련: 한 자리수~다섯 자리수의 덧셈·뺄셈·곱셈·나눗셈
• 비교훈련: 분수 비교, 곱셈 비교, 덧셈 비교, 증가율·감소율 비교, 배수 비교, 다항 덧셈
• 기출훈련: 실제 자료해석 기출에 출제된 비교 선지 수록
• 학습 통계: 정답률·풀이 시간 추이, 유형별 상세 통계
• 오답노트로 틀린 문제 복습

매일의 꾸준한 훈련이 합격으로 이어집니다.

한국어와 영어를 지원합니다.

■ 약관 및 정책
이용약관(EULA): 
개인정보 처리방침: 

## 윤진원의오뚜기 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/33/5a/e6/335ae68f-f219-40c9-5f47-186bff27e6c3/iphone_1.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2c/6c/30/2c6c30a4-dd0d-ff4b-fa77-3267470051b5/iphone_2.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/42/c5/58/42c55872-96da-98a7-acd1-d2ed451d0ee9/iphone_3.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f6/25/bc/f625bc9c-b67b-e68f-9b19-b9581c23e9b6/iphone_4.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/db/2c/9c/db2c9c86-e0f4-75ec-dec0-5e1130e04d57/iphone_5.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/e7/82/ad/e782ad8d-5580-e391-63d0-c06202a2e8c0/iphone_8.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a6/af/7a/a6af7a72-6bd6-8e81-945c-d617fccf2467/iphone_6.png/1284x2778.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/17/ed/84/17ed8427-4df7-1f06-1d92-87821726d78f/iphone_7.png/1284x2778.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/08/ce/bc/08cebc20-0bc4-a97d-1151-81c0c2382105/iphone_10.png/1284x2778.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f7/2b/45/f72b4545-c8df-bd55-2800-39c98536c27d/iphone_9.png/1284x2778.png)

## 윤진원의오뚜기 Rating Breakdown in South Korea
- 5 stars: 5 (71%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 2 (29%)

## 윤진원의오뚜기 Reviews in South Korea

### ***** "감사합니다!"
책없이도 어디서든 연습할 수 있어서 좋아요 ! 스터디
하며 꾸준히 사용하고 있습니다;)
-- 팬더._., 2026-06-12

### ***** "기출훈련 구독했는데 페이지 변동없이 구매하기만 나오네요"
어떻게 해결해야하나요?
-- 우후이히, 2025-12-13

[View all 윤진원의오뚜기 reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## 윤진원의오뚜기 In-App Purchases
| Item | Price |
|------|-------|
| 비교훈련 | 2.90 ￦ |
| 기출훈련 | 2.90 ￦ |




## 윤진원의오뚜기 Available In
- [South Korea](https://apptail.io/app/app-cmRw/south-korea)
- [Estonia](https://apptail.io/app/app-cmRw/estonia)
- [Latvia](https://apptail.io/app/app-cmRw/latvia)

---

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