# so2check — Network Connectivity Test

> Network Connectivity Test (iPhone/iPad app by Yasuhiro Hamada.)

- Source: https://appshunter.io/ios/app/so2check/id6749897303 (this page in markdown: same URL + `.md`)
- Developer: [Yasuhiro Hamada](https://appshunter.io/developer/1825750232)
- Category: Utilities, Developer Tools
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 25 MB
- Languages: American English
- Released: 2025-08-13
- Data updated: 2026-08-21
- User reviews in markdown: https://appshunter.io/ios/app/so2check/id6749897303/reviews.md

## What is so2check?

So2Check is a simple yet powerful network connectivity testing app designed for network engineers, system administrators, and developers.

【Key Features】
■ TCP Connection Test
Instantly test connections to any hostname or IP address and port number. Clearly displays connection success, failure, or timeout status, with response time measured in milliseconds.

■ Destination Management
Save frequently used destinations and run tests with a single tap. Sample destinations like Google DNS and Cloudflare DNS are included so you can start testing right away.

■ Test History
Automatically saves all test results. Search by name, host, port, status, or error message. Filter by success, failure, or timeout to find exactly what you need.

■ Preset Feature
Save test results as presets with one tap. Organize by category to streamline your regular monitoring tasks.

【Use Cases】
・Server and service availability monitoring
・Firewall configuration verification
・Network troubleshooting and diagnosis
・Connectivity verification for new service deployments
・Post-VPN connection testing

【Security】
All test results are encrypted and stored locally on your device. No data is ever sent to external servers. Safe for enterprise use.


## Version history (last 4 releases)

### 1.0.3 — 2026-08-20

Minor improvements and bug fixes.

### 1.0.2 — 2025-12-09

• Multi-language support (English, Japanese, Chinese, Spanish) • Bug fixes and performance improvements

### 1.0.1 — 2025-09-16

- 多言語対応

### 1.0 — 2025-08-14

No release notes.

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## More apps by Yasuhiro Hamada

- [かんたん血圧ノート](https://appshunter.io/ios/app/id6748420974)
- [モザイクショット](https://appshunter.io/ios/app/id6748945888)
- [チョカログ](https://appshunter.io/ios/app/id6749660161)
- [Figulabo](https://appshunter.io/ios/app/figulabo/id6752771332)
- [Page2MF](https://appshunter.io/ios/app/page2mf/id6753724820)

All apps by Yasuhiro Hamada: https://appshunter.io/developer/1825750232

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*