If you are looking to install this on a TV box, you can follow these standard procedures:

These were older versions (like DarkTV Pro by FastestFire) that have occasionally been unpublished from the Play Store but remain available as APKs on sites like AppBrain . Safety & Data Security

Developed by Apple Media Networks, this is the most common version with over 100k downloads. It focuses on entertainment content but may have limitations like lack of Picture-in-Picture (PiP) functions.

The Play Store version of Dark TV claims to share no data with third parties and collects no user data.

Downloading "Box9" or other versions from unofficial sites carries risks. APKs from outside the Play Store can contain malware or adware.

Experts recommend using a VPN when using third-party streaming apps to protect your IP and personal information. Installation Guide for Android TV Boxes

Searching for "Darktv Box9" specifically points toward various versions of "Dark TV" entertainment apps or streaming services available for Android and Android TV devices. While there isn't a single official "Box9" branded APK, this term often refers to the latest build or a specific version hosted on third-party sites for Android TV boxes.

Multiple "Dark TV" applications exist, mostly focused on movie and live TV streaming: