Second vs Mafia Guard by VLVD Works
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Precise server time synchronization
- Drift tracking for sustained accuracy
- Picture-in-Picture (PiP) timer
- Example site shortcuts
- Multilingual support
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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!
Mafia Guard by VLVD Works
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Run a game of Mafia without cards, notes, or a narrator who has to remember everything. Mafia Guard is the moderator's screen. It hands out secret roles, walks you through each night and vote, and works out who is eliminated - so you can keep the table talking. SECRET ROLE REVEAL - Pass the phone around the circle; each player sees only their own role - Tap to reveal, tap to hide before handing it on - Mafia, Doctor, Detective and Villager GUIDED NIGHT PHASE - Step through the Mafia's target, the Doctor's save and the Detective's investigation in order - Saves and eliminations are worked out for you - Investigation results are shown to the moderator only SIMPLE VOTING - Record one vote per living player - Ties are detected automatically and nobody goes out - The eliminated player's role is revealed to the table THE APP CALLS THE WINNER - Checked after every night and every vote - Villagers win when the last Mafia is gone; Mafia win once they match the rest of the town - A full summary shows every role and how the game unfolded BUILT FOR GAME NIGHT - Four players or more - Role counts are checked before you start, so you never begin a game that cannot be won - Put the phone down and pick the game back up where you left it - A timeline of every night and every vote - Connect to a TV or projector for a shared scoreboard EVERYTHING STAYS ON YOUR DEVICE - No account and no sign-in - Works completely offline - No analytics, no tracking, no data collected
Screenshots
Verdict
The clearest difference is in-app purchases: Mafia Guard by VLVD Works at none against Second's 1. Mafia Guard by VLVD Works also leads on ads (none vs shown). Second's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence 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
Both are free to download. Second sells 1 one-off in-app purchase. Mafia Guard by VLVD Works asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.
| Parameter | Second | Mafia Guard by VLVD Works |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 4 days | Every 4 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 56 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Minjun Kim | LAKSHMI VENKATA DURGA PRASANTH VEMULAPALLI |
In-app purchases
Second
- 초정확 Pro 업그레이드$1.99
Mafia Guard by VLVD Works
No in-app purchases
Questions
Is Second free?
Is Mafia Guard by VLVD Works free?
Do Second or Mafia Guard by VLVD Works have ads?
Which is updated more often, Second or Mafia Guard by VLVD Works?
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