USIM스마트인증 vs SGI M(SGI서울보증)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
USIM스마트인증
Securely store your digital certificates on your smartphone, eliminating worries about hacking or leaks. Access your certificates easily for logins and financial transactions anytime, anywhere.
- Secure certificate storage on smartphone
- Protection against hacking and leaks
- Convenient access for logins and transactions
- Portable digital certificate management
- Use for year-end tax settlement
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[인증서 해킹, 유출 걱정 없는 스마트인증] 인증서를 저장할 때, 불안한 USB메모리나 PC에 저장하셨나요? 인증서 해킹, 유출 걱정 없는 스마트인증으로 인증서 보안과 휴대성을 모두 챙기세요! 연말정산 때도 편리하게 사용하세요~ 스마트인증은 스마트폰에 공동인증서를 저장하여 인증서 로그인, 금융 거래 등 본인인증이 필요할 때 사용하는 보안서비스 입니다. “스마트인증”과 “보안토큰”으로 인증서가 필요한 모든 사이트에서 이용가능합니다. [개발사정보] * 회사명 : 라온시큐어(주) * 주 소 : 서울특별시 영등포구 여의대로 108, 파크원타워2 47-48층(여의도동) * 서비스 이용문의 : (휴대폰) 114 / (유선) 1644-5128 (이메일) voc@raon.com
SGI M(SGI서울보증)
Manage your insurance contracts conveniently from your smartphone. Offers secure login options and electronic signing for various services, including new online-exclusive product sales. Contact customer service for assistance.
- Insurance contract management
- Secure login via financial certificate or phone verification
- Quick login with Kakao/Naver
- Electronic signing with various certificates
- New online-exclusive product sales
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SGI서울보증 보험계약과 관련된 업무를 스마트폰을 통해 편리하게 이용하실 수 있습니다. 안전한 금융거래와 개인정보보호를 위하여 최초1회 본인인증 후 업무 서비스 이용이 가능합니다. * 주요기능 - 금융인증서 및 휴대폰 본인확인을 통한 편리한 본인인증 - 카카오·네이버를 통한 신속·간편한 로그인 - 금융인증서 및 카카오 ·네이버 인증서를 통한 다양한 전자서명 방법 - 온라인 전용 다이렉트 상품 신규 판매 애플리케이션 이용 중 불편 또는 문의사항이 있으시면 고객센터로 연락주세요. 고객센터 대표전화 : 1670-7000 고객센터 이용시간 : 평일 09:00 ~ 17:30
Screenshots
Verdict
The clearest difference is rating: SGI M(SGI서울보증) at 2.6 against USIM스마트인증's 1.8. SGI M(SGI서울보증) also leads on update cadence (every 2 months vs every 4 months) and iOS requirement (13.0 vs 16.0). USIM스마트인증's advantage is review sentiment (83% vs 52%). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SGI M(SGI서울보증) holds the better App Store score, 2.6 against 1.8. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews complicate that: 83% of USIM스마트인증's written reviews are positive against 52% of SGI M(SGI서울보증)'s, so the app with the better star average is not the one people write more warmly about.
USIM스마트인증 ships an update every 4 months, SGI M(SGI서울보증) every 2 months. The most recent releases landed on September 22, 2026 and October 2, 2026 respectively.
| Parameter | USIM스마트인증 | SGI M(SGI서울보증) |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (4 ratings) | 2.6 (5 ratings) — better |
| Positive reviews | 82.6% of reviews — better | 52.2% of reviews |
| Number of ratings | 4 | 5 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 50 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | RaonSecure Co., Ltd. | SGI서울보증 |
Customer experience
USIM스마트인증
SGI M(SGI서울보증)
In-app purchases
USIM스마트인증
No in-app purchases
SGI M(SGI서울보증)
No in-app purchases








