What do you think about SQR (SaleQR) ?
It is a an accomplished project.
https://bitcointalk.org/index.php?topic=5033576
Both we can have some for free,
because they do not sell, but distribute for free to the members.
There are interests between consumers (+discounts), retailers (+sales) and brands (+marketing).
I like that project because it is not an ICO, they are not asking money, the platform is ready to use.
Let we see!