Master ID card is a Universal ID card based on the mobile application. This is a digital card with encrypted QR code (Quick Response Code). QR codes are the evolved version of the 2D barcodes, being denser, as well as universally read by smart phones.
The download of the app doesn't contain viruses or any kind of malware. Shiran Technologies Pvt. Ltd. has created Master ID that lies within the Educational category. Users rated the tool 4 on Google Play.
This application was downloaded and set up by over 10K users and the most recent stable release was on Aug 25, 2017. It's free to get the installer of Master ID, also, you can read users' reviews on Droid Informer. The app works fine on Android 4.0.3 and above.