I purchased four VStarCam cameras (two indoor/2 outdoor) and initially was able to install them after downloading the app. The cameras were slow to operate but I appreciated being able to monitor both video and audio. I found that the cameras went offline every few weeks which required me to delete and reinstall them. Now, none of the cameras will come back online even though the app can see that they are plugged in. Tech support says to reset the cameras, but this has proven not to work. I recommend avoiding this brand.
RedDiscus about VsCam, v2.3.2