# Site Checker vs 出发计时

The clearest difference is price: 出发计时 at Free against Site Checker's $1.90. 出发计时 also leads on iOS requirement (13.0 vs 15.0). Site Checker's advantage is chart position (#143 vs unranked) and device support (4 vs 2). On ads and in-app purchases there is nothing between them.

出发计时 is free to download; Site Checker costs $1.90 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Site Checker | 出发计时 |
| --- | --- | --- |
| Price | $1.90 | **Free** |
| Rating | **[3.4 (12 ratings)](https://appshunter.io/ios/app/site-checker-down-detector/id1630945886/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Paid | — |
| Best chart rank | **#143** | — |
| Size | 8 MB | 18 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Tamara Dudarenko](https://appshunter.io/developer/1602845370) | [Language Interactive Network Technology](https://appshunter.io/developer/1831911000) |

## What reviewers say

### Site Checker

[App page](https://appshunter.io/ios/app/site-checker-down-detector/id1630945886)

**Currently charting:** #143 Top Paid · Utilities (US App Store)

This app provides web tool utilities to monitor network connection stability and website availability. It includes HTTP tests for API checks and a downtime detector to verify site access globally. Useful for system administrators and web developers to troubleshoot DNS and ISP connection issues.

**Highlights:** WiFi and mobile data connection monitoring, HTTP test for REST API checks, Downtime detector for site access, Works on 3G/4G/5G/LTE and WiFi, Supports VPN and proxy servers, Troubleshoots DNS and ISP connection issues

**In-app purchases:** none


### 出发计时

[App page](https://appshunter.io/ios/app/id6757190795)

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

**In-app purchases:** none


## Frequently asked questions

### Is Site Checker free?

Site Checker costs $1.90, with no in-app purchases.

### Is 出发计时 free?

出发计时 is free to download, with no in-app purchases.

### Do Site Checker or 出发计时 have ads?

Neither Site Checker nor 出发计时 shows ads.

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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.*