Comparison

Second vs MilliS

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

Head to head
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
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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!

About

MilliS

Features
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서버 시간을 항상 화면 위에. 다이나믹하게. 티켓 예매, 수강신청, 선착순 구매 — 1000분의 1초가 승부를 가르는 순간이 있습니다. 하지만 서버 시간을 확인하려면 웹페이지와 앱을 오가야 하죠. MilliS는 웹사이트의 진짜 서버 시간을 iPhone의 화면 상단과 잠금화면에 항상 띄워, 앱을 벗어나지 않고도 결정적 순간의 타이밍을 잡게 해주는 서버 타이머입니다. ■ 정확한 서버 시간, 밀리초 단위로 웹사이트 서버의 시간을 정확하게 알려드립니다. 네트워크 왕복 지연을 보정하고 주기적으로 자동 재동기화하므로 손수 맞출 필요가 없어요. '광클'에 도움이 되는 지연 시간도 함께 확인하세요. ■ 다이나믹한 사용자 경험 iOS 실시간 현황을 지원해 화면 상단와 잠금 화면에서 서버 시간이 실시간으로 흐릅니다. 홈 화면 위젯으로도 빠르게 접근할 수 있고, Apple Watch에서도 실시간 현황 위젯을 지원해요. ■ 목표 시각 카운트다운과 알림 오픈 시각을 정하면 서버 시간 기준으로 남은 시간을 카운트다운합니다. 결정적 순간을 놓치지 않도록 배너 알림과 사운드·진동으로 알려드립니다. ■ 원하는 사이트는 전부 북마크에 저장 곧 열리는 티켓팅 사이트, 대학교 수강신청 페이지를 저장해 필요할 때 불러오세요. 추천 프리셋에는 수백여 곳의 링크가 담겨 있습니다. ■ 이런 순간에 특히 유용해요 · 콘서트·공연·스포츠 티켓팅 · 대학교 수강신청 · 선착순 혜택·쇼핑 오픈런 · 인기 식당·숙소·병원 예약 ■ MilliS Pro 무료로 시작하고, 필요할 때 1회 구매로 Pro의 모든 기능을 잠금 해제하세요. · 광고 제거 · Apple Watch 전용 앱 — 손목 위에서 서버 시간 확인·컨트롤 · 북마크 무제한 · 단축어 SDK와 Siri로 만드는 자동화 루틴

Screenshots

Second4 screens
MilliS4 screens

Verdict

The call

The clearest difference is iOS requirement: Second at 15.0 against MilliS's 17.0. 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. Second sells 1 one-off in-app purchase and MilliS sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Second versus MilliS: the parameters behind the verdict, then further details
ParameterSecondMilliS
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews88.9% of reviews—
Number of ratings4 — better—
Update frequencyEvery 4 days—
AdsYesYes
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.0 — better17.0
Further details — not scored
Size55 MB7 MB
Age rating4+4+
DeveloperMinjun KimJonghyeok Lim

In-app purchases

1 purchases

Second

One-time1
  • 초정확 Pro 업그레이드$1.99
1 purchases

MilliS

One-time1
  • MilliS Pro$1.99

Questions

Is Second free?
Second is free to download, with in-app purchases available.
Is MilliS free?
MilliS is free to download, with in-app purchases available.
Do Second or MilliS have ads?
Both Second and MilliS show ads.

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