I have bad experience with this app,My 5 years old son like it so much but unfortunately he makes a lot of purchases accidentally cost me 616 $ approximately because my credit card was saved in Google account,I emailed the developer to refund me of this app but unfortunately they make automated reply and no answer, also I emailed Google and said contact the developer,if they don't return my many I warn every body use this app to protect his account because it isn't save at all and may cost alot