Crashes if you have the wrong resolution but get the resolution right and it works perfectly (you may need to remove the camera to change the resolution). Works fine with cheep USB camera and with a PC3315 Digital Microscope on the Acer A501 Tablet. [Would be better if it would save images and if the menus were not only in German (though you don't need to understand German to figure out how to use it).] Now captures images from USB camera and has English menus as well as the German. Developer is very responsive to suggestions. Top App, highly recommended to anyone who has a use for an external camera on their Android device.