Syncloud app always open browser?

I’m an android user my syncloud app always opens to a browser.
It doesn’t do anything actually within the app and I was wondering if that was a error or if I should just manage everything through my browser if so should use a seperate secured browser?

Correct, app does not actually do anything except discovering the device and then it opens the browser so users do not have to find the device IP for activation.
You do not really need an app as all features are available on the web UI.

How exactly can i stay secure using it in my browser?

Device uses https to protect your browser connection.