Comparison

CJ ONE vs 우체국

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CJ ONE

This lifestyle membership service offers exclusive benefits, special experiences, and rewards. Enjoy personalized deals, brand coupons, and convenient point accumulation and redemption through a mobile barcode. Engage in daily missions for extra points and rewards.

Highlights
  • Personalized benefit community
  • Brand coupons for dining, shopping, culture
  • Mobile barcode for points and gift cards
  • Daily missions for points (roulette, games, steps)
  • Point accumulation and redemption
  • Gift card registration and usage
Features
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Everyday Sparkle, CJ ONE From everyday perks to exclusive experiences on special days! CJ ONE is a true lifestyle membership service designed to be with you in every moment. ● Enjoy CJ brand benefits and news on CJ ONE Global. - Anyone can join the membership, even if you don't reside in Korea or aren't a Korean national. - Simply tap the globe icon on the home screen to switch to Global Service. - Discover various CJ brands and enjoy exclusive discounts and point rewards. ● Make your day special with coupons from diverse brands. - Welcome coupons for new members and birthday coupon packs every year on your birthday. - Discover various coupons across dining, shopping, and entertainment directly in the app. ● Easily earn and redeem points with a single barcode. - Earn, redeem, and apply coupons all at once with just one barcode. - Scan your barcode to earn points and receive extra bonus points. [Access Permissions] The access permissions required to use the Service are as follows. These permissions are necessary to provide the CJ ONE Global Service. 1. Required access permissions - Device and app history: checking the app's running status - Device ID: preventing multiple logins - Device identifier (UUID): preventing fraudulent use of the Service The optional permissions below are not collected or used for Global Members. 2. Optional access permissions - Address book: searching contacts when gifting points or gift cards/mobile vouchers (ONECON) - Location: Wonderland, coupons, store finder - Camera: ONE Walk background setting and scanning barcodes, QR codes, and credit cards - Photos: attaching images to community posts, ONE Walk background setting - Biometric authentication: simple login and authentication using face, fingerprint, etc. - Physical-activity access: measuring steps in ONE Walk * How to change access permissions: Device Settings > CJ ONE * Optional access permissions require allowance when the relevant feature is used; even if not allowed, services other than that feature remain available. [Please Note] - Supported on iOS 15.0 or higher. - For security purposes, service use is restricted on devices with modified operating systems (e.g., rooted, jailbroken). - You can receive a mobile card immediately upon downloading the app and signing up/logging in. - Available on Wi-Fi and networks. Data charges may apply when using 5G/LTE/3G. - Customer Center: cjoneglobal.cs@cj.net

About

우체국

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과학기술정보통신부 우정사업본부에서 제공하는 우체국 모바일 우편 서비스 통합 애플리케이션입니다.  방문접수소포(픽업), EMS·국제우편, 간편사전접수, 알뜰폰, 포스트톡(푸시알림), 기념우표 사전예약판매, 계약고객모바일, 우체국찾기, 배송조회, 우편번호검색, 우편요금조회, 부가우편서비스 등의 다양한 우체국의 모바일 서비스를 제공합니다. [소포] 방문접수소포(픽업), 반품접수, 착불배달우편물 요금결제 서비스를 제공합니다. [EMS·국제우편] EMS방문(픽업)/창구접수, 국제창구접수, 통관절차대행 수수료납부, 국가별 발송조건, 요금조회 서비스를 제공합니다. [우표·엽서·카드]  기념우표 사전예약판매, 우표, 축하카드, 나만의우표, 모바일엽서 서비스를 제공합니다.  [알뜰폰] 알뜰폰소개, 신규·번호이동, 기기변경, 요금조회(실시간 요금조회) 서비스를 제공합니다. [부가우편서비스] 수취인배달장소 변경, 주거이전서비스, 간편사전접수 서비스를 제공합니다. [포스트톡] 우체국의 우편물 배달관련 메시지를 고객 스마트폰에 푸시알림으로 전송하는 서비스로 수취인배달장소 변경, 재배달신청, 실시간 배달조회, 집배원에게 배달메시지 남기기(소포우편물), 우편고객만족센터 전화기능 등 다양한 서비스를 제공합니다. [우체국찾기] 지도검색, 명칭검색으로 우체국, 우체통, 365코너, 무인창구 찾기 서비스를 제공합니다.  [배송조회] 우체국소포, 등기우편물, EMS·국제우편의 배송상태 조회, 배송조회이력, 나의 등기번호 찾기, 국가별 콜센터 조회기능을 제공합니다. [우편번호검색] 도로명 또는 지번으로 우편번호 검색, 조회이력을 제공합니다. 우편번호 검색 시 주소 영문표기, 우편물구분코드(집배코드)도 제공됩니다. [우편요금조회] 국내일반/등기, 국제일반/등기에 대한 우편물구분, 규격구분, 통수, 무게 등 다양한 조건에 따른 요금계산 서비스를 제공합니다. [이용내역조회] 소포, EMS·국제우편, 우표·엽서·카드, 부가우편서비스 이용내역 조회 서비스를 제공합니다.  [마이페이지] 푸시알림설정, 정보변경 및 환경설정 서비스를 제공합니다. [고객센터] 공지사항, 자주하는 질문, 서비스안내, 고객불편신고, 우편톡 서비스를 제공합니다. [우체국 연관 모바일 앱 바로가기] 우체국쇼핑, 스마트뱅킹, PostPay, 우체국보험 바로가기 서비스를 제공합니다. 인터넷우체국 회원으로 가입하시면 보낸 우편물/받는 우편물, 주소록, 이용내역조회 등 보다 편리하게 우체국 서비스를 이용하실 수 있습니다. PC환경에서는 인터넷우체국(www.epost.go.kr)으로 접속하시면 모바일과 동일한 서비스를 이용하실 수 있습니다.

Screenshots

CJ ONE4 screens
우체국4 screens

Verdict

The call

The clearest difference is review sentiment: CJ ONE at 71% against 우체국's 19%. CJ ONE also leads on rating (3.5 vs 2.2) and ratings volume (37 vs 10). 우체국's advantage is ads (none vs shown). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

CJ ONE holds the better App Store score, 3.5 against 2.2. Both are backed by a comparable volume of ratings — 37 and 10 respectively. Written reviews point the same way: 71% of CJ ONE's written reviews are positive against 19% of 우체국's.

UpkeepUpdate frequency

CJ ONE ships an update every 5 weeks, 우체국 every 2 months. Both last shipped on October 29, 2026.

Scorecard4 real differences · 6 level
CJ ONE versus 우체국: the parameters behind the verdict, then further details
ParameterCJ ONE우체국
PriceFreeFree
Rating3.5 (37 ratings) — better2.2 (10 ratings)
Positive reviews71.3% of reviews — better18.8% of reviews
Number of ratings37 — better10
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size176 MB16 MB
Age rating4+4+
DeveloperCJ OliveNetworks Co., Ltd.ePost

Customer experience

CJ ONE

All ratings37 ratings
Positive62.2%
Neutral5.4%
Negative32.4%
Written reviews94 reviews
Positive71.3%
Neutral7.4%
Negative21.3%

우체국

All ratings10 ratings
Positive30.0%
Neutral0.0%
Negative70.0%
Written reviews64 reviews
Positive18.8%
Neutral12.5%
Negative68.8%

Bugs and requests

CJ ONE

Reported bugs

10 issues
  • App crashes on startup
  • App freezes
  • ARS authentication repeatedly required
  • App not updating
  • Gift card scratch number not visible
Show 5 more
  • App doesn't open after update
  • Background battery drain
  • App closes unexpectedly
  • Slow performance and overheating
  • Update fails

Requested features

5 requests
  • Change password rules
  • Email masking feature
  • Improve UI consistency
  • Fix ARS authentication issues
  • Improve gift card scratch number visibility

우체국

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

CJ ONE

No in-app purchases

None

우체국

No in-app purchases

Questions

Is CJ ONE free?
CJ ONE is free to download, with no in-app purchases.
Is 우체국 free?
우체국 is free to download, with no in-app purchases.
Which has better reviews, CJ ONE or 우체국?
CJ ONE is rated higher. CJ ONE averages 3.5 out of 5 from 37 ratings, while 우체국 averages 2.2 from 10 ratings.
Do CJ ONE or 우체국 have ads?
CJ ONE shows ads; 우체국 does not.
Which is updated more often, CJ ONE or 우체국?
CJ ONE ships an update every 5 weeks, and 우체국 every 2 months. Most recently, CJ ONE was updated on October 29, 2026 and 우체국 on October 29, 2026.

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