ThetaZero is a remote camera control application specified only for Ricoh THETA device. This can shows battery level / shutter sound on-off / exposure compensation and shutter control through Wi-Fi at Android device.
In the "BROWSE" tab, tapping thumbnail copy image from THETA and show it with image viewer application. Long tap shows dialog to delete it.
If you install "ThetaSphere" module, panorama picture information is automatically added on transfering from THETA. And you can use Photo Sphere viewer application on the device newer than Android 4.2.