IP info Detective is a free Android application developed by DoubleR Software. It is a tool used to investigate IP addresses and provide detailed information about them. The app uses publicly available IP blacklists to aggregate the data and present it in an easy-to-read format to inform the user if an IP address is listed on those lists.

The application offers several features, such as investigating an entire range or network for suspected IPs, searching for the host name and IP address, traceroute, ping, and visual traceroute, IP geo-location, QR scanner option, and voice dictation. Instantly check your remote or local IP address just by clicking on them.

The app requires permission to access photos, media, files, full network access, view network connections, and read Google service configuration. These permissions are necessary for the app to function correctly. An internet connection is required to use this application.

Overall, IP info Detective is a useful tool for system admins with hundreds of computers in the network and for users who want to know the status of an IP address. It gives you detailed information regarding the IP address in question, and it's easy to use.