Its not good at all

I dont even know how to use it.
Its waste my money to buy it and and now I cant use it.
Do I have to write Vietnamese on Vikey page and then copy and move to my email, paste.....or something?
Crazy...
And when I try to contact with bathanh to learn how to use it, I never get the reply...
So, what did I buy this app for?

I hate it

Hanakjmj about ViKey - Bộ gõ tiếng Việt - TELEX, VNI, VIQR - Vietnamese keyboard, v2.3