TCP and UDP port knocking for iPhone and iPad
Select a saved profile and explicitly send its configured sequence. Create profiles manually or import knockd.conf snippets and simple knock-client lines. IPv4, IPv6 and mixed TCP/UDP sequences are supported.
An optional test checks only the single TCP port you entered. The app does not scan networks, open SSH sessions or configure firewalls. A compatible server must be configured separately.
Purchase and requirements
Planned German App Store price: €2.99 once, including applicable taxes. The price shown by your Apple storefront controls; regional prices differ. No subscription, in-app purchases or automatically charged trial. Not yet publicly available; Apple review is required.
Requires iOS/iPadOS 17 or later. Interface: German, English, French, Spanish and Simplified Chinese. You must own or have express permission to administer destinations. Connectivity and mobile data charges may apply.
The neutral landing page follows browser language preferences. Direct language links keep their chosen language.