Knock on Ports
Knock on Ports Summary
Knock on Ports is a mobile Android app in Tools by Alexander Yaburov. Released in Sep 2018 (7 years ago). It has about 41.5K+ installs and 488 ratings with a 4.60★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 2.1K monthly active users . Store metadata: updated May 23, 2026.
Recent activity: 67 installs this week (268 over 4 weeks) showing steady growth View trends →
Store info: Last updated on Google Play on May 23, 2026 .
4.6★
Ratings: 488
Screenshots
App Description
A powerful client to manage and run port knocking sequences
A utility for executing port knocking sequences to discreetly open access to services protected by firewalls. Configure custom sequences using UDP, TCP, or ICMP packets with support for both IPv4 and IPv6.
Key Features:
• Protocol Flexibility: Create sequences with UDP, TCP, or ICMP packets. Fine-tune parameters including destination ports, inter-packet delays, TTL, Hop Limit, and packet payload data.
• Automation & Integration: Automatically launch applications (e.g., SSH clients) or open URLs upon a successful knock. Supports integration with other tools via a custom URI scheme for advanced automation.
• Dual-Stack Support: Full compatibility with IPv4 and IPv6 networks.
• Wear OS Support: Execute your knock sequences directly from your smartwatch.
• Quick Access: Utilize home screen shortcuts and a widget for immediate execution of configured sequences.
• Customization: Adjust the interface with dynamic color themes (Android 12+), custom accents, and light/dark modes. Includes options for improved contrast.
• Configuration Management: Export and import your knocking sequences for backup or transfer.
• No Ads, Open Source: A free, transparent application focused on privacy and user control.