Tez app developed by google we all know about it . so many apps are running in market even bank side also but a app running from banks are charaging us more. By Just depositing a amount in our account they are getting interest by other side. I think they are charging more for transaction it might be any kind .
I have seen one of the review in this app about this app , he said there are giving a coupan by same statement as better luck next time . yes, he is right they do the same think . but one of my friend doing the same like doing many transaction he earning min 200/- per week and still he getting. As per my said this is good for money transaction because they not charging fee for the work , so this is stand for the middle of the good and bad opinion.
Some time even banks app also get the trouble for transcation as time out, network problem like that . over all this we can use tez with out any problem .