This utility app allows you to remotely open firewall ports on your server using a saved sequence of connection attempts from your iPhone. It supports TCP or UDP for each port and provides live feedback on the connection status.





0+ iOS apps & games curated and reviewed
Every iPhone needs a few good port knocking apps and games. We benchmark 0+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 5.0★ (1) | No | No | Jul 2026 | |
| 2 | $0.99 | 5.0★ (8) | No | No | Jun 2026 | |
| 3 | Free | — | No | No | May 2026 | |
| 4 | Free | 4.6★ (4.8K) | Yes | Yes | Aug 2026 | |
| 5 | Free | 2.8★ (6) | Yes | No | Aug 2026 | |
| 6 | Free | 4.3★ (252) | No | No | Aug 2026 | |
| 7 | Free | — | No | Yes | May 2026 | |
| 8 | Free | — | No | No | May 2026 |





This utility app allows you to remotely open firewall ports on your server using a saved sequence of connection attempts from your iPhone. It supports TCP or UDP for each port and provides live feedback on the connection status.




This utility allows network administrators to send custom port knock sequences to servers. It requires a port knock daemon on the server and offers features like password protection, knock validation, and host management.



Build and manage a thriving shipping port to defend the world from an alien invasion. Earn coins by unloading ships, expand your empire with new ports, and construct coastal defenses. Master the art of tapping to upgrade your facilities and become a successful shipping tycoon.


This utility scans your network for open TCP ports. It automatically identifies hostnames and associates known service names with the scanned ports, providing a clear overview of network activity.


Guide ships to safe port approaches by drawing their paths. Avoid collisions with other vessels and manage your ships' fuel levels. Ensure successful arrivals by refueling when necessary.








Build and manage your own bustling port. Upgrade your transport fleet, unlock new areas, and hire managers to optimize your operations and become a port tycoon. Enjoy a simulation experience focused on growth and efficiency.


Build a functional port from scratch by operating heavy machinery and transporting materials. Complete unique tasks and levels to become an expert in port construction and ship loading.


Navigate the Port of Baltimore with this official guide. Find directions to terminals and essential information for your visit.


This tool allows network engineers and security professionals to check the port status of IP addresses or hosts directly from their Apple devices. It enables on-the-go network analysis and security assessments without needing a laptop.








This app quickly scans your local Wi-Fi network to identify all connected devices and the services they are running. It provides detailed information, helps troubleshoot connections, and offers privacy by performing all scans on your device.






Operate heavy machinery like cranes and forklifts to build and expand a bustling city seaport. Manage shipping operations, including loading and unloading cargo for export and import.