FreeOTP+ (2FA Authenticator)

FreeOTP + is an free and open-sourced 2FA autenticator forked from the original FreeOTP with additional feature to help backup, restore and interoperate with other OTP authentication clients. Additional feature: 1. Back up the data to Google Drive or other storage. 2. Restore data from Google Drive or other storage. 3. Material design and updated UI. 4. Android 6.