Comparison

dotmill PMS vs Second

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

Head to head
About

dotmill PMS

Features
Read full description

닷밀 프로젝트를 관리할 수 있는 모바일 어플리케이션 입니다. 프로젝트 기안과 결재 및 관리를 모바일에서 쉽게 처리할 수 있습니다.

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

dotmill PMS4 screens
Second4 screens

Verdict

The call

The clearest difference is in-app purchases: dotmill PMS at none against Second's 1. dotmill PMS also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads 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. dotmill PMS asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on September 23, 2026 and September 28, 2026 respectively.

Scorecard2 real differences · 8 level
dotmill PMS versus Second: the parameters behind the verdict, then further details
Parameterdotmill PMSSecond
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—88.2% of reviews
Number of ratings—2 — better
Update frequencyEvery 4 daysEvery 4 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size67 MB49 MB
Age rating4+4+
DeveloperdotmillMinjun Kim

In-app purchases

None

dotmill PMS

No in-app purchases

1 purchases

Second

One-time1
  • 초정확 Pro 업그레이드$1.99

Questions

Is dotmill PMS free?
dotmill PMS is free to download, with no in-app purchases.
Is Second free?
Second is free to download, with in-app purchases available.
Do dotmill PMS or Second have ads?
Neither dotmill PMS nor Second shows ads.
Which is updated more often, dotmill PMS or Second?
dotmill PMS ships an update every 4 days, and Second every 4 days. Most recently, dotmill PMS was updated on September 23, 2026 and Second on September 28, 2026.

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