All our apps and watch faces comply with all Google’s policies and with all relevant privacy statutes. They contain nothing nasty, they do not seek to make money in underhand ways and they do not make use of personal information.
The SumFun app asks for one piece of information: the first name of the child who will use it. This is used solely to show messages to that child, messages such as, ‘Well done Amy’ and ‘Try again Amy’. It is only stored on the device. A child using SumFun has no way to spend any money or link to any other content.
There is no advertising.