Apps similar to WHID Mobile Connector include Kali Nethunter, which is free and open source. Other options are Zed Attack Proxy (ZAP), WiFi Duck and Rucky. In total there are four Penetration Testing Tools like WHID Mobile Connector for Android, Mac, Windows, Linux and the web.
The Kali Linux NetHunter project is the first Open Source Android penetration testing platform for Nexus devices, created as a joint effort between the Kali community member “BinkyBear” and Offensive Security. NetHunter supports Wireless 802.
The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications.
This open-source project aims to provide a user-friendly tool to learn about keystroke injection attacks and 'BadUSBs'.
