KollusPlayer vs Second
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KollusPlayer
This is a dedicated video player for encrypted content from the Kollus service. It offers playback speed control and resume playback functionality. Compatible with a wide range of iPhone and iPad models.
- Plays Kollus encrypted content
- Adjustable playback speed (0.5x-2.0x)
- Resume playback
- Wide device compatibility
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KollusPlayer는 Kollus 서비스의 암호화된 컨텐츠를 재생하기 위한 전용 동영상 플레이어입니다. [부가기능] 배속조절: x0.5~x2.0 (iPhone4 x1.2배속) 이어보기 [지원단말] iPhone4s, iPhone5, iPhone5c, iPhone5s, iPhone6, iPhone6 Plus, iPhone6s, iPhone6s Plus, iPhoneSE, iPhone7, iPhone7 Plus, iPhone 8, iPhone 8 Plus, iPhone X iPad2, iPad3, iPad Retina, iPad Air, iPad Air 2, iPad mini, iPad mini 2, iPad mini 3, iPad mini 4, iPad Pro
Second
This utility app provides precise server time synchronization down to milliseconds, ideal for critical moments like course registration or 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 accuracy
- Picture-in-Picture 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!
Screenshots
Verdict
The clearest difference is review sentiment: Second at 89% against KollusPlayer's 26%. Second also leads on rating (5.0 vs 1.4) and update cadence (every 4 days vs monthly). KollusPlayer's advantage is in-app purchases (none vs 1) and ads (none vs shown). 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
Both are free to download. Second sells 1 one-off in-app purchase. KollusPlayer asks for nothing beyond the download.
Second holds the better App Store score, 5.0 against 1.4. That said, the two scores are not equally well evidenced: KollusPlayer has 82 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 26% of KollusPlayer's written reviews are positive against 89% of Second's.
KollusPlayer ships an update monthly, Second every 4 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | KollusPlayer | Second |
|---|---|---|
| Price | Free | Free |
| Rating | 1.4 (82 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 26.4% of reviews | 88.9% of reviews — better |
| Number of ratings | 82 — better | 4 |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Catenoid, Inc. | Minjun Kim |
Customer experience
KollusPlayer
Second
In-app purchases
KollusPlayer
No in-app purchases
Second
- 초정확 Pro 업그레이드$1.99








