---
title: "66일 - 습관 형성, 하루 관리 - Reviews, Revenue and Downloads in South Korea | Apple App Store"
description: "UCL. University College London 에서 습관에 관한 연구를 진행 했습니다. 연구에 참여한 사람들이 습관을 형성하는데 걸린 평균 시간은 66일이라고 합니다. 습관을 형성하기 위해서는 많은 노력을 들여야 하는 것은 아닙니다. 왜냐하면 그 행동을 충분히 오래동안 반복하기만 하면 습관이 되어 자동적으로 하게 될 것이기 때문이죠.  습관 행동을"
---

# 66일 - 습관 형성, 하루 관리 — South Korea
> 좋은 습관 만들기, 나쁜 습관 고치기 및 동기부여

![66일 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/66/ea/4b/66ea4be2-c286-36ba-d864-16dc7d803ef9/AppIcon-0-0-1x_U007emarketing-0-9-0-sRGB-85-220.png/400x400bb.png)

**Developer:** [Epipherse](https://apptail.io/developer/epipherse-uNdc)
**Category:** Productivity
**Rating:** 4.9/5 (130 ratings)
**Price:** Free
**Bundle ID:** com.loycord.sixtysixdays
**Store:** Apple App Store
**Country:** South Korea
**Version:** 2.13.1 (released 2026-09-11)
**Original Release:** 2018-10-29

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/kr/app/app/id1439590647)
**AppTail Page:** [https://apptail.io/app/66-pDBb/south-korea](https://apptail.io/app/66-pDBb/south-korea)

## 66일 Description
UCL. University College London 에서 습관에 관한 연구를 진행 했습니다. 연구에 참여한 사람들이 습관을 형성하는데 걸린 평균 시간은 66일이라고 합니다. 습관을 형성하기 위해서는 많은 노력을 들여야 하는 것은 아닙니다. 왜냐하면 그 행동을 충분히 오래동안 반복하기만 하면 습관이 되어 자동적으로 하게 될 것이기 때문이죠.

습관 행동을 하루에 1개 이상만 체크하면 연속 일수가 계속 진행됩니다. 66일 진행하여 지금 바로 목표를 위한 행동들을 자신의 습관으로 만들어보세요.


[특별한 기능]
프로젝트 단위로 목표를 세우고 습관을 형성합니다.
        
[기능]
다크 모드 지원
알림 기능 지원
메모 기능 지원
사진 기록 지원

Terms of Use (EULA): 
Privacy Policy: 

## 66일 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/67/bd/3d/67bd3dd5-616e-e83e-e46d-268275e07284/23b50822-31ad-4cf0-adda-1fb7931f25ea_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-11-02_at_14.22.02.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/16/80/09/168009be-7580-9bdc-93d1-9de1abc46521/0a35e526-94aa-4222-9343-5170d77a2a11_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-11-02_at_14.23.29.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/da/b0/6d/dab06d3c-fcc9-03e3-039d-003f7586682b/7b97840a-7c8a-4c34-9d3c-43cb844630a2_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-11-02_at_14.24.06.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/22/f1/59/22f159b6-c657-9db6-d8f1-1b1370ada80d/6c088ca1-3025-4715-933f-08cdc3136054_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-11-02_at_14.30.39.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/25/6e/1a/256e1aea-45d2-5ef1-8d6d-d522a984c6b6/5c04fcce-41a1-491c-a31d-30825a5505a6_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-11-02_at_14.31.07.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/7e/22/fe/7e22fe8e-ff12-e885-5d5c-f4419127f4db/35c9336c-1510-4e75-ae2b-143d713d2520_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-11-02_at_14.31.41.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/64/1a/88/641a88fe-5a7f-a342-a04b-d02b5c44092b/926f406c-6261-413d-a59c-7390351ff044_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-11-02_at_14.32.30.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/09/d5/6f/09d56fd9-3cc4-a9aa-0c90-1c71090c2ced/abbd6b7d-0647-45c9-bf2a-b7b35f40bdbc_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-11-02_at_15.07.28.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/91/7d/bd/917dbd59-342c-c5f7-b460-6c0b87cd8951/2525d4d3-7b91-4830-8676-4ed2a19ac51c_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-11-02_at_15.07.34.png/1242x2688.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/57/70/80/57708043-5c15-8982-c0ac-ccf10fab3a86/2bc61ab8-bcfe-4eb7-9bb1-d2e4bab1eae1_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-11-02_at_14.33.23.png/1242x2688.png)

## 66일 Rating Breakdown in South Korea
- 5 stars: 123 (95%)
- 4 stars: 4 (3%)
- 3 stars: 1 (1%)
- 2 stars: 1 (1%)
- 1 stars: 1 (1%)

## 66일 Reviews in South Korea

### ***** "습관형성은 이앱으로"
미니멀리즘의 끝판왕인 습관앱. 단순한거 좋아하는 사람에겐 goat 앱. 직관적인 형성가능. 연속일기능도 좋습니다. 구독료가 진짜 싸서 좋아요.
-- Luciozx, 2025-08-12

### ***** "러시아"
러시아
-- Hhhhhhihihiihi, 2024-10-09

### ***** "안드로이드 버전은 안나올까요? ㅠㅠ"
교사입니다. 
학생들과 학급 특색 활동으로 사용할 습관형성 어플을 칮고 있던 중 66 days를 발견하고 마음에 쏙들어 아이들에게 권했는데 아이들이 안드로이드에는 없다고 하더라고요. 그래서 다른 어플 엄청 찾아봤는데 마음에 쏙 드는 것은 이것 뿐입니다. ㅠㅠ 
안드로이드 버전도 만들어 주세요.. ㅠㅠ
-- 호격, 2024-03-31

### ***** "간결한 ui , 함축적인 기능"
간결하면 리스트를 기록하기가 좋습니다.
-- 오잉동, 2024-03-02

### ***** "아주 잘 사용하고 있습니다."
습관 관리하기에 아주 좋습니다. 
인터페이스도 직관적이고 예쁩니다.
-- 아빠상어~, 2024-02-11

### ***** "위젯"
달력모양으로 프로젝트별로 위젯 만들수 있으면 완벽할듯
-- motooh, 2024-02-02

### ***** "습관만들기 최고의 앱 🤩.."
원래 리뷰 잘 안 쓰는데 다들 쓰셨으면 하는 마음에 리뷰 쓰고 갑니당 깔끔하고 정리가 잘 되어있고.. 그냥 최고입니다 지금까지 만족 못 한 앱만 수두룩이라 깔고 지우고를 반복했었는데 이 앱은 오랫동안 사용할 것 같아요 66일 습관 만들기 다같이 성공해봅시다!
-- ㅜㅇㅈ너ㅓ먀큐ㅑ붚캡, 2024-01-29

### ***** "넘넘넘 조아요!"
기능들이 너무 직관적이게 표현되어서 금방 사용법도 익히고 너무 좋아요!!! 특히 햅틱 짜잘하게 들어간 화면들 ㅜㅜㅜ 귀여워서라도 더 열심히 하게 돼요 그런데 나쁜 습관 기록은 사실 잘 안쓰게 되는 것 같아요 아예 0으로 리셋되는게 조금 무서워서 잘 안쓰게 되더라구요!!
-- 꾸어어우어어웅, 2023-03-14

### *---- "사용법이 뭔데"
어케쓰는건데요 ㅡㅡ복잡한게아닌데 
직관적으로 쓰는 느낌 전혀없고
뭐가 뭔지 모르겠어요
이거 유료 아니였나?  돈아까워도 지웁니다
-- 스트레스받아, 2023-02-14

### ****- "깔끔한 ui가 좋아요"
근데 나쁜습관고치기는 어떤기능인지 모르겠네요. 시간은 가고 0숫자는 무슨의미인지 모르겠고 기록은 어떻게해야하는건지 설명이 필요해요
-- ming085275, 2022-05-15

[View all 66일 reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## 66일 In-App Purchases
| Item | Price |
|------|-------|
| 프리미엄 1개월 | 2.00 ￦ |
| 프리미엄 1년 | 9.50 ￦ |
| 프리미엄 3개월 | 4.50 ￦ |
| 프로젝트 연속 기록 복구 | 4.40 ￦ |


## 66일 Discovered Keywords
- 해빗트래커
- 100일
- do good
- goodness day
- 습관 추적기
- do exercises
- 66일
- 습관 형성
- 하루 관리
- habit recorder

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## 66일 Available In
- [South Korea](https://apptail.io/app/66-pDBb/south-korea)
- [United States](https://apptail.io/app/66-pDBb/united-states)
- [Vietnam](https://apptail.io/app/66-pDBb/vietnam)
- [Germany](https://apptail.io/app/66-pDBb/germany)
- [Mexico](https://apptail.io/app/66-pDBb/mexico)
- [France](https://apptail.io/app/66-pDBb/france)
- [Indonesia](https://apptail.io/app/66-pDBb/indonesia)
- [Japan](https://apptail.io/app/66-pDBb/japan)
- [United Kingdom](https://apptail.io/app/66-pDBb/united-kingdom)
- [Thailand](https://apptail.io/app/66-pDBb/thailand)
- [Russia](https://apptail.io/app/66-pDBb/russia)
- [Taiwan](https://apptail.io/app/66-pDBb/taiwan)
- [Ireland](https://apptail.io/app/66-pDBb/ireland)
- [China](https://apptail.io/app/66-pDBb/china)
- [Italy](https://apptail.io/app/66-pDBb/italy)
- [Colombia](https://apptail.io/app/66-pDBb/colombia)
- [Spain](https://apptail.io/app/66-pDBb/spain)
- [Sweden](https://apptail.io/app/66-pDBb/sweden)
- [Mauritius](https://apptail.io/app/66-pDBb/mauritius)
- [Malaysia](https://apptail.io/app/66-pDBb/malaysia)
- [Hong Kong SAR China](https://apptail.io/app/66-pDBb/hong-kong)
- [Chile](https://apptail.io/app/66-pDBb/chile)
- [Croatia](https://apptail.io/app/66-pDBb/croatia)
- [Sri Lanka](https://apptail.io/app/66-pDBb/sri-lanka)
- [Estonia](https://apptail.io/app/66-pDBb/estonia)
- [Egypt](https://apptail.io/app/66-pDBb/egypt)
- [Finland](https://apptail.io/app/66-pDBb/finland)
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- [Guyana](https://apptail.io/app/66-pDBb/guyana)
- [Honduras](https://apptail.io/app/66-pDBb/honduras)
- [Hungary](https://apptail.io/app/66-pDBb/hungary)
- [Israel](https://apptail.io/app/66-pDBb/israel)
- [India](https://apptail.io/app/66-pDBb/india)
- [Iceland](https://apptail.io/app/66-pDBb/iceland)
- [Jamaica](https://apptail.io/app/66-pDBb/jamaica)
- [Jordan](https://apptail.io/app/66-pDBb/jordan)
- [Kenya](https://apptail.io/app/66-pDBb/kenya)
- [Kuwait](https://apptail.io/app/66-pDBb/kuwait)
- [Cayman Islands](https://apptail.io/app/66-pDBb/cayman-islands)
- [Kazakhstan](https://apptail.io/app/66-pDBb/kazakhstan)
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- [Lithuania](https://apptail.io/app/66-pDBb/lithuania)
- [Luxembourg](https://apptail.io/app/66-pDBb/luxembourg)
- [Latvia](https://apptail.io/app/66-pDBb/latvia)
- [Madagascar](https://apptail.io/app/66-pDBb/madagascar)
- [North Macedonia](https://apptail.io/app/66-pDBb/north-macedonia)
- [Mali](https://apptail.io/app/66-pDBb/mali)
- [Macao SAR China](https://apptail.io/app/66-pDBb/macau)
- [Malta](https://apptail.io/app/66-pDBb/malta)
- [Namibia](https://apptail.io/app/66-pDBb/namibia)
- [Nigeria](https://apptail.io/app/66-pDBb/nigeria)
- [Netherlands](https://apptail.io/app/66-pDBb/netherlands)
- [Norway](https://apptail.io/app/66-pDBb/norway)
- [Nepal](https://apptail.io/app/66-pDBb/nepal)
- [New Zealand](https://apptail.io/app/66-pDBb/new-zealand)
- [Oman](https://apptail.io/app/66-pDBb/oman)
- [Panama](https://apptail.io/app/66-pDBb/panama)
- [Peru](https://apptail.io/app/66-pDBb/peru)
- [Philippines](https://apptail.io/app/66-pDBb/philippines)
- [Pakistan](https://apptail.io/app/66-pDBb/pakistan)
- [Poland](https://apptail.io/app/66-pDBb/poland)
- [Portugal](https://apptail.io/app/66-pDBb/portugal)
- [Qatar](https://apptail.io/app/66-pDBb/qatar)
- [Romania](https://apptail.io/app/66-pDBb/romania)
- [Saudi Arabia](https://apptail.io/app/66-pDBb/saudi-arabia)
- [Singapore](https://apptail.io/app/66-pDBb/singapore)
- [Slovenia](https://apptail.io/app/66-pDBb/slovenia)
- [Slovakia](https://apptail.io/app/66-pDBb/slovakia)
- [Senegal](https://apptail.io/app/66-pDBb/senegal)
- [Suriname](https://apptail.io/app/66-pDBb/suriname)
- [Tunisia](https://apptail.io/app/66-pDBb/tunisia)
- [Türkiye](https://apptail.io/app/66-pDBb/turkey)
- [Ukraine](https://apptail.io/app/66-pDBb/ukraine)
- [Uganda](https://apptail.io/app/66-pDBb/uganda)
- [Uruguay](https://apptail.io/app/66-pDBb/uruguay)
- [Uzbekistan](https://apptail.io/app/66-pDBb/uzbekistan)
- [British Virgin Islands](https://apptail.io/app/66-pDBb/british-virgin-islands)
- [South Africa](https://apptail.io/app/66-pDBb/south-africa)
- [Armenia](https://apptail.io/app/66-pDBb/armenia)
- [Angola](https://apptail.io/app/66-pDBb/angola)
- [Argentina](https://apptail.io/app/66-pDBb/argentina)
- [Austria](https://apptail.io/app/66-pDBb/austria)
- [Australia](https://apptail.io/app/66-pDBb/australia)
- [Azerbaijan](https://apptail.io/app/66-pDBb/azerbaijan)
- [Barbados](https://apptail.io/app/66-pDBb/barbados)
- [Belgium](https://apptail.io/app/66-pDBb/belgium)
- [Bulgaria](https://apptail.io/app/66-pDBb/bulgaria)
- [Bahrain](https://apptail.io/app/66-pDBb/bahrain)
- [Bermuda](https://apptail.io/app/66-pDBb/bermuda)
- [Brunei](https://apptail.io/app/66-pDBb/brunei)
- [Brazil](https://apptail.io/app/66-pDBb/brazil)
- [Botswana](https://apptail.io/app/66-pDBb/botswana)
- [Belarus](https://apptail.io/app/66-pDBb/belarus)
- [Belize](https://apptail.io/app/66-pDBb/belize)
- [Canada](https://apptail.io/app/66-pDBb/canada)
- [Switzerland](https://apptail.io/app/66-pDBb/switzerland)
- [Czechia](https://apptail.io/app/66-pDBb/czechia)
- [Denmark](https://apptail.io/app/66-pDBb/denmark)
- [Dominican Republic](https://apptail.io/app/66-pDBb/dominican-republic)
- [Algeria](https://apptail.io/app/66-pDBb/algeria)
- [Ecuador](https://apptail.io/app/66-pDBb/ecuador)
- [United Arab Emirates](https://apptail.io/app/66-pDBb/united-arab-emirates)
- [Cambodia](https://apptail.io/app/66-pDBb/cambodia)

---

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