Comparison

우리아이의 유치원 vs Second

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

Head to head
About

우리아이의 유치원

Features
Read full description

우리아이의 유치원 1. 서울시 내 모든 유치원의 위생 환경을 조회할 수 있습니다. 2. 해당 유치원의 지도, 상세 정보를 조회할 수 있습니다. 3. 원하는 유치원을 따로 저장하여서 조회할 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

우리아이의 유치원3 screens
Second4 screens

Verdict

The call

The clearest difference is in-app purchases: 우리아이의 유치원 at none against Second's 1. 우리아이의 유치원 also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price 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. 우리아이의 유치원 asks for nothing beyond the download.

Scorecard3 real differences · 7 level
우리아이의 유치원 versus Second: the parameters behind the verdict, then further details
Parameter우리아이의 유치원Second
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—88.9% of reviews
Number of ratings—4 — better
Update frequency—Every 4 days
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size24 MB56 MB
Age rating4+4+
DeveloperHyungjun KIMMinjun Kim

In-app purchases

None

우리아이의 유치원

No in-app purchases

1 purchases

Second

One-time1
  • 초정확 Pro 업그레이드$1.99

Questions

Is 우리아이의 유치원 free?
우리아이의 유치원 is free to download, with no in-app purchases.
Is Second free?
Second is free to download, with in-app purchases available.
Do 우리아이의 유치원 or Second have ads?
Second shows ads; 우리아이의 유치원 does not.

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