Comparison

VestMail vs Second

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

Head to head
About

VestMail

This application allows users to read secure emails from a specific provider on their smartphone. It may not support secure emails requiring external plugin installations. For usability issues, users can request support via email.

Highlights
  • Read secure emails
  • Smartphone compatibility
  • Support for yettiesoft emails
  • User support via email
Features
Read full description

* VestMail은 예티소프트(www.yettiesoft.com)에서 제공하는 보안메일을 읽을 수 있는 스마트폰 프로그램입니다. * 외부 보안 플러그인 설치가 필요한 보안메일의 경우 모바일에서 열람이 불가합니다. * 확대, 축소 등 사용에 불편이 있으신 경우 메일의 정보("**카드 요금 고지서"와 같은 메일 받으신 서비스명)를 포함하여 다음 메일로 지원 요청해주세요. (support@yettiesoft.com) * VestMail is a smartphone program that allows you to read secure e-mails provided by yettiesoft (www.yettiesoft.com).

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

VestMail4 screens
Second4 screens

Verdict

The call

The clearest difference is review sentiment: Second at 89% against VestMail's 28%. Second also leads on rating (5.0 vs 1.4) and update cadence (every 4 days vs every 5 months). VestMail'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. VestMail asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Second holds the better App Store score, 5.0 against 1.4. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews point the same way: 28% of VestMail's written reviews are positive against 89% of Second's.

UpkeepUpdate frequency

VestMail ships an update every 5 months, Second every 4 days. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

Scorecard6 real differences · 4 level
VestMail versus Second: the parameters behind the verdict, then further details
ParameterVestMailSecond
PriceFreeFree
Rating1.4 (7 ratings)5.0 (4 ratings) — better
Positive reviews27.8% of reviews88.9% of reviews — better
Number of ratings7 — better4
Update frequencyEvery 5 monthsEvery 4 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size18 MB55 MB
Age rating4+4+
DeveloperyettiesoftMinjun Kim

Customer experience

VestMail

All ratings7 ratings
Positive14.3%
Neutral0.0%
Negative85.7%
Written reviews54 reviews
Positive27.8%
Neutral1.9%
Negative70.4%

Second

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

In-app purchases

None

VestMail

No in-app purchases

1 purchases

Second

One-time1
  • 초정확 Pro 업그레이드$1.99

Questions

Is VestMail free?
VestMail 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, VestMail or Second?
Second is rated higher. VestMail averages 1.4 out of 5 from 7 ratings, while Second averages 5.0 from 4 ratings.
Do VestMail or Second have ads?
Second shows ads; VestMail does not.
Which is updated more often, VestMail or Second?
VestMail ships an update every 5 months, and Second every 4 days. Most recently, VestMail was updated on October 13, 2026 and Second on October 11, 2026.

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