Opt is very usefull for every person so that not open other person our page. For example bank account etc page. If any person open our account that time opt on our mobile so that time we
safe and secure our account. I like it very much and request any person like it or vote opt
The opt dystem is allow any company account and secure page wuch we use for us. I ask other person please tell I am write or not.
Thanks
Gajanand.