expira VSB is a video application for smartphones (and tablets). expira VSB uses 4G/5G or WLAN (if available) to show other people something live via video stream and to be able to quickly assess, clarify and document an issue. Send a live video and chat with the person at the same time. You can also mark and highlight important areas in the video. During the live video, you can also send chat messages from the app to the person. Poorly lit areas can be made more visible using the flash functio