Comparison

Bill Letter vs OVEY

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

Head to head
About

Bill Letter

Manage various bills and benefits from paper or email in one smart app. Track real-time charges, payment history, and access exclusive offers. Reduce personal information exposure by receiving bills digitally.

Highlights
  • Consolidated bill management
  • Real-time charge tracking
  • Multiple payment options
  • Card point and dormant deposit inquiry
  • Personalized recommendations and events
  • Secure digital bill delivery
Features
Read full description

종이/이메일로 받아보던 각종 요금안내서와 다양한 혜택을 편리하고 스마트하게 관리하는 "요금안내서 Bill Letter" 우편 이메일로 받아보던 통신요금서, 카드명세서, 지방세(서울시), 도시가스 등 각종 청구서를 통합하여 관리할 수 있는 'Bill Letter'로 내 자산 관리부터 실시간 요금 조회, 생활 혜택까지 다양한 부가서비스를 경험하세요. [주요 기능] ■ 청구서를 신청하고 각종 청구서를 한 번에 관리 및 편리하게 납부하세요! - SK텔레콤 / SK브로드밴드 / 신용카드(삼성•하나카드) / 지방세(서울시) / 도시가스 / 현금영수증 - 카카오페이 / 네이버페이 / 토스페이 / 11pay 머니 / 계좌이체 / 체크,신용카드 / 11pay / OK캐시백 포인트 / 편의점QR 로 통신요금 납부 가능 ■ 실시간 요금 내역을 통해 이용패턴을 알 수 있어요! - 실시간 통신요금 / 데이터 사용량 조회 / 지난달 이용량 / 사용 요금제 조회 등 ■ 내 청구 요금을 한눈에 보실 수 있어요! - 통신요금 / 카드명세서, 지방세(서울시), 도시가스 등 각종 청구서 / 자동차 시세 조회 등 ■ 카드 포인트, 휴면예금 및 보험금 등 알찬 정보를 조회하실 수 있어요! - 카드 포인트, 휴면예금, 보험금, 자동차보험 과납 보험료 통합조회 등 ■ 빌레터 고객을 위한 맞춤추천과 이벤트를 함께 하세요! - 부가서비스 / 이벤트 / 추천정보 내 손안의 통신금융생활 'Bill Letter'를 통해 각종 청구서를 받아보세요. 우편물 도난 및 분실로 인한 개인정보 유출 가능성이 낮아 안전하고 편리하게 청구서를 통합하여 받아보실 수 있습니다. • 불편하신 사항은 고객센터 114로 문의하시면 신속한 도움드리겠습니다. [앱 접근 권한] - 알림(선택): 푸시 메세지 수신을 위해 필요한 권한입니다. - 동작 및 피트니스(선택) : 만보기 서비스에서 걸음 수를 측정하기 위해 필요한 권한입니다. - 생체인식정보(선택) : Touch ID(지문)/Face ID(얼굴) 인증 시 사용합니다. *앱 접근 권한 변경은 설정 > 애플리케이션에서 변경 가능 합니다. [유의 사항] - iOS 15 이상 버전 부터 서비스 이용이 가능합니다. - 원활한 이용을 위해, 단말기 OS와 앱을 최신 버전으로 업데이트 해주세요. - 3G, LTE, 5G 상에서 서비스 이용 시 데이터 통화료 요금이 발생할 수 있습니다.(SKT 이동전화에서 SKT/SKB 요금안내서 이용 시에는 데이터 통화료가 발생하지 않습니다.) - SKT, KT, LG U+ 회선 가입자만 이용이 가능합니다. (일부 MVNO 가입자는 이용할 수 있습니다.) - 가입 통신사, 개인 정보 보호 및 명의자 본인 여부에 따라 서비스 제공에 제한이 있을 수 있습니다. - SKT 요금안내서를 등록하시면 기존에 받아보시던 요금안내서 유형(우편, 문자 등)이 Bill Letter로 변경되며, 티월드에서 요금안내서 유형 변경을 하실 수 있습니다. - 제공되는 납부방식은 청구 회사에 따라 다를 수 있습니다. *개발자 연락처: +8215990011

About

OVEY

Earn rewards by completing surveys in your spare time. This app allows you to cash out your earnings or exchange them for coupons. It's a convenient way to monetize your downtime and provide valuable feedback.

Highlights
  • Complete surveys for rewards
  • Refer friends for cash bonuses
  • Cash out earnings or exchange for coupons
  • Receive survey notifications
  • Anonymized data collection
  • Optional camera and storage access for photo responses
Features
Read full description

No.1 Mobile Research Survey Application, Ovey Ovey is a survey application utilized by more than 2,400 Korean corporations to obtain feedback from real users. Don’t know what to do with your free time? Take 5 minutes to fill out a couple of surveys and cash out the rewards! [ Features of Ovey ] 1. Sign-in referral Share a link or send a Kakaotalk message to invite your friends to use the Ovey app. You can collect a reward cash of 300 Korean Won once your friend creates an account and fills out a basic survey. 2. Put your credit to use Your credit can be cashed out or exchanged for coupons. 3. Ovey whenever and wherever You can use the Ovey App as long as you have a stable internet connection. [ Ovey 101] 1. Download the app and sign in or create a new account. 2. Whenever a notification pops up, simply click on it or open the app to answer the survey. 3. Check your reward for the survey you answered. 4. Use the credit you’ve collected however you like! [ Ovey’s use of data ] 1. The aggregated data collected by each survey will be available to the owner of the survey. 2. All data collected will be completely anonymized. ■ Notice of access rights # Optional access rights You can use the app even if you do not agree to the required permissions within the Ovey app. However, please note that doing so may result in the restriction of some additional services. Permissions can be granted on the spot when required by the application. • Camera: Accessed to take a new photo respond to questions that require photos as responses • Storage space: Accessed to store the photos uploaded to respond to questions that require photos as responses ※ Starting from December 2nd, 2024, iOS 15 lower will no longer be supported. ※ Please update your iOS to version 15 or higher for the best experience within the application. ■ Customer Center Ovey Customer Center: https://support.ovey.co.kr/hc/en E-mail: thanks@ovey.co.kr

Screenshots

Bill Letter4 screens
OVEY4 screens

Verdict

The call

The clearest difference is review sentiment: OVEY at 82% against Bill Letter's 38%. OVEY also leads on rating (4.6 vs 3.3) and update cadence (every 2 weeks vs every 2 months). On price, ads, 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

OVEY holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: OVEY has 189 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 38% of Bill Letter's written reviews are positive against 82% of OVEY's.

UpkeepUpdate frequency

Bill Letter ships an update every 2 months, OVEY every 2 weeks. The most recent releases landed on September 13, 2026 and September 15, 2026 respectively.

Scorecard5 real differences · 5 level
Bill Letter versus OVEY: the parameters behind the verdict, then further details
ParameterBill LetterOVEY
PriceFreeFree
Rating3.3 (15 ratings)4.6 (189 ratings) — better
Positive reviews37.9% of reviews82.3% of reviews — better
Number of ratings15189 — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.615.5 — better
Further details — not scored
Size32 MB61 MB
Age rating4+4+
DeveloperSK TelecomOPENSURVEY INC.

Customer experience

Bill Letter

All ratings15 ratings
Positive46.7%
Neutral20.0%
Negative33.3%
Written reviews29 reviews
Positive37.9%
Neutral10.3%
Negative51.7%

OVEY

All ratings189 ratings
Positive92.6%
Neutral3.7%
Negative3.7%
Written reviews62 reviews
Positive82.3%
Neutral9.7%
Negative8.1%

Bugs and requests

Bill Letter

Not enough reviews yet to summarise bugs or requests.

OVEY

Reported bugs

2 issues
  • App is slow and has errors
  • Surveys close too quickly

Requested features

3 requests
  • More surveys available
  • Expand to international markets
  • More survey partners

In-app purchases

None

Bill Letter

No in-app purchases

None

OVEY

No in-app purchases

Questions

Is Bill Letter free?
Bill Letter is free to download, with no in-app purchases.
Is OVEY free?
OVEY is free to download, with no in-app purchases.
Which has better reviews, Bill Letter or OVEY?
OVEY is rated higher. Bill Letter averages 3.3 out of 5 from 15 ratings, while OVEY averages 4.6 from 189 ratings.
Do Bill Letter or OVEY have ads?
Neither Bill Letter nor OVEY shows ads.
Which is updated more often, Bill Letter or OVEY?
Bill Letter ships an update every 2 months, and OVEY every 2 weeks. Most recently, Bill Letter was updated on September 13, 2026 and OVEY on September 15, 2026.

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