# Second vs DoguZip

The clearest difference is in-app purchases: DoguZip at none against Second's 1. Second's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Second sells 1 one-off in-app purchase. DoguZip asks for nothing beyond the download.

Second ships an update every 4 days, DoguZip every 5 days. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Second | DoguZip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/second-sync/id6752860014/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 88.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | Free | — |
| Size | 49 MB | 40 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Minjun Kim](https://appshunter.io/developer/1841275054) | [JAEMIN LEE](https://appshunter.io/developer/1894477300) |

## What reviewers say

### Second

[App page](https://appshunter.io/ios/app/second-sync/id6752860014)

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:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 초정확 Pro 업그레이드 | $1.99 | one-time |


### DoguZip

[App page](https://appshunter.io/ios/app/doguzip/id6800202279)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Second free?

Second is free to download, with in-app purchases available.

### Is DoguZip free?

DoguZip is free to download, with no in-app purchases.

### Do Second or DoguZip have ads?

DoguZip shows ads; Second does not.

### Which is updated more often, Second or DoguZip?

Second ships an update every 4 days, and DoguZip every 5 days. Most recently, Second was updated on September 28, 2026 and DoguZip on September 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*