VSS SmartOTP is a free Android app developed by Bảo hiểm xã hội Việt Nam that provides an additional layer of security for transactions made through the Smart OTP authentication service on the portal of Bảo hiểm xã hội Việt Nam. The app generates a one-time password (OTP) that is required to complete transactions, adding an extra level of security to prevent unauthorized access.

The app is easy to use and provides a quick and convenient way to generate OTPs for transactions. It is a useful tool for those who frequently use the Smart OTP authentication service to access the portal of Bảo hiểm xã hội Việt Nam. The app is available for free and can be downloaded from the Google Play Store.