If you're looking for a secure way to share files between two different devices, the app you're looking for is Memory 2 Move. It allows you to access your hard drive from a mobile device or another computer. It is not an app for streaming, but rather for copying and editing your files. You can choose between sharing the whole folder or just a selected folder.

You can also add multiple users and give them access to different folders. All files will be uploaded to the folder you choose. The app supports all file types. It can be used on Android, iOS, Windows, and Mac.