Totally acerdo with what you pose @hatu in terms of trust and honesty in the games, there will always be room for the manipulation of results when the human factor is what defines the facts.
With the advent of the chain of blocks, these problems can be easily solved. It gives everything, there is no area where it can not be used to make processes more clear and efficient.
Giving more confidence to those who want to participate, because in addition to all the transparency is in sight.

I did not know about the existence of these app, thanks for presenting them.