TCP Port Scanner
Detecting open TCP ports.
About
This network utility allows technical users to perform TCP port scanning and basic network diagnostics on their device. It detects open TCP ports on reachable hosts within a specified range and provides selectable text output for easy analysis. Optimized for quick scanning without consuming excessive resources.
What's New in TCP Port Scanner
1.3.0
June 24, 2026
Added an option to remove ads. Improved the app to start smoothly without stopping, even if the network connection is unstable at startup.
In-App Purchases
$1.99
Remove Ads
Removes all ads from the app.
Developer apps
FAQ
What is TCP Port Scanner used for?
TCP Port Scanner is used for detecting open TCP ports on reachable hosts within a specified range. It's useful for network diagnostics, service verification, and security assessments.
Does TCP Port Scanner require root access?
No, TCP Port Scanner does not require root access to function. Users can simply specify an IP address and a port range to initiate a scan.
How are scan results presented in TCP Port Scanner?
Scan results are aggregated into a single selectable text block. This format makes it easy to copy, log, and perform external analysis of the data.
What devices is TCP Port Scanner compatible with?
TCP Port Scanner is compatible with iPhone and iPad devices. It is designed as a mobile-first network tool.
Is TCP Port Scanner free to use?
Yes, TCP Port Scanner is available for free. However, it does contain advertisements and offers in-app purchases.
Does TCP Port Scanner have ads?
Yes, TCP Port Scanner contains advertisements. This is part of its monetization model.
How often is TCP Port Scanner updated?
The latest version, 1.3.0, was released on June 24, 2026. Updates are provided by the developer akira ohmachi.
What is the age rating for TCP Port Scanner?
TCP Port Scanner has an age rating of 4+. This indicates it is suitable for a wide range of users.