Comparison

StonePASS vs Second

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

Head to head
About

StonePASS

This app consolidates various authentication methods like fingerprint, face, PIN, and pattern into a single, convenient application. It simplifies logins for work systems and offers secure, multi-factor authentication at a reduced cost.

Highlights
  • Unified authentication methods
  • Biometric login (fingerprint, face)
  • PIN and pattern login
  • Two-factor authentication (2FA)
  • Push notifications for login approval
  • Reduced system implementation costs
Features
Read full description

[StonePASS(스톤패스) 통합인증 소개] '간편인증', 생체인증'을 위한 통합인증앱입니다. 스톤패스는 지문, 얼굴, PIN, 패턴 등을 이용해 사용자인증(로그인)이 가능하도록 하나의 APP으로 통합한 간편인증앱입니다. (※적용된 사이트마다 지원 내역이 다를 수 있으니, 사이트 관리자에 문의하세요.) 이젠 업무시스템 변경은 최소화하고 합리적인 비용(구축형 대비 80% 절감)으로 간편인증, 2차인증(2FA), 생체인증을 적용하세요. [사용방법] 1. 기관등록 - 사용자가 이용하는 사이트에서 안내받은 서비스코드를 입력합니다. 2. 통신사본인인증 - 통신사 본인인증 화면의 정보를 입력하고 자신의 핸드폰임을 인증합니다. 3. 인증수단 등록 - PIN번호, 패턴, 생체(지문, 얼굴 등)순서로 인증수단을 등록합니다. 4. 설정 - 인증수단선택, 공지사항, FAQ등을 확인할 수 있습니다. 5. 인증 사용법 - 사용자가 사용하는 업무시스템에서 로그인 시 StonePASS 통합인증앱을 선택하면 휴대전화로 PUSH 알림이 수신됩니다. - 앱을 실행하여 본인이 선택한 인증수단으로 인증을 완료하면 PC에서는 시스템에 로그인 됩니다. - 모바일앱에서 사용하는 경우에는 바로 앱호출이 됩니다. [주의사항] - 모바일 기기가 3G, LTE, Wi-Fi등 통신이 가능한 상태에서 이용하실 수 있습니다. - 생체정보를 포함하여 PIN번호, 패턴 등은 서버에 저장되거나 전송하지 않습니다.

About

Second

This utility app provides precise server time synchronization down to milliseconds, crucial for time-sensitive events like registrations and ticketing. It features drift tracking for sustained accuracy and a Picture-in-Picture timer for live monitoring while using other applications.

Highlights
  • Precise server time synchronization
  • Drift tracking for sustained accuracy
  • Picture-in-Picture (PiP) timer
  • Example site shortcuts
  • Multilingual support
Features
Read full description

Precise server time, at a glance. Second-Sync is a time synchronization tool for moments where one second matters, such as course registration and ticketing. It multi-samples the HTTP Date of your chosen site and aligns the difference from the server clock down to milliseconds. Drift tracking maintains accuracy over time, while the PiP timer lets you watch live server time even when using other apps. Key features - Precise synchronization: collects HTTP Date in parallel at least 30 times, then calculates the offset after RTT compensation, outlier removal, and EMA smoothing. - Drift estimation: runs linear regression on measured samples to track the slope of the device clock and maintain accuracy as time passes. - PiP timer: opens a Picture in Picture timer as a companion app, so you can monitor the server clock live while using a browser or other apps. - Example site shortcuts: quick buttons to load course registration pages for major Korean universities and ticket booking sites. - Multilingual support: supports Korean, English, Japanese, and Simplified Chinese, with a separate in-app language setting. Recommended for - Anyone who wants exact server time in situations where it is critical, such as registration, ticketing, or reservations. - Anyone who wants to keep accurate server time visible on iPhone or iPad while booking on the go. Notes - Synchronization may fail on sites that do not support the HTTP Date header. If so, enter another target server or use the example sites in the app. - Picture in Picture works only on supported devices running iOS 15 or later, including iPadOS. - Sync your server time with Second-Sync now. One button gives you stable synchronization and a PiP timer, so you do not miss the important moment!

Screenshots

StonePASS3 screens
Second4 screens

Verdict

The call

The clearest difference is review sentiment: Second at 89% against StonePASS's 5%. Second also leads on rating (5.0 vs 3.0) and update cadence (every 4 days vs every 3 weeks). StonePASS's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, monetization model 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. Second sells 1 one-off in-app purchase. StonePASS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Second holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 5% of StonePASS's written reviews are positive against 89% of Second's.

UpkeepUpdate frequency

StonePASS ships an update every 3 weeks, Second every 4 days. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

Scorecard6 real differences · 4 level
StonePASS versus Second: the parameters behind the verdict, then further details
ParameterStonePASSSecond
PriceFreeFree
Rating3.0 (2 ratings)5.0 (4 ratings) — better
Positive reviews5.0% of reviews88.9% of reviews — better
Number of ratings24 — better
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size24 MB55 MB
Age rating4+4+
DeveloperSSenStoneMinjun Kim

Customer experience

StonePASS

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews20 reviews
Positive5.0%
Neutral5.0%
Negative90.0%

Second

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews36 reviews
Positive88.9%
Neutral2.8%
Negative8.3%

In-app purchases

None

StonePASS

No in-app purchases

1 purchases

Second

One-time1
  • 초정확 Pro 업그레이드$1.99

Questions

Is StonePASS free?
StonePASS is free to download, with no in-app purchases.
Is Second free?
Second is free to download, with in-app purchases available.
Which has better reviews, StonePASS or Second?
Second is rated higher. StonePASS averages 3.0 out of 5 from 2 ratings, while Second averages 5.0 from 4 ratings.
Do StonePASS or Second have ads?
Second shows ads; StonePASS does not.
Which is updated more often, StonePASS or Second?
StonePASS ships an update every 3 weeks, and Second every 4 days. Most recently, StonePASS was updated on October 9, 2026 and Second on October 11, 2026.

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