An app which is build for cheating complains about cheating ...
The founders who built Glass don't complain about cheating. Rather, the developer of
https://github.com/sohzm/cheating-daddy complained of copyright infringement of his code by the developers of Glass.
They complained of license violation, not copyright infringement. There’s a big difference. The original license already granted the rights for anyone to copy the code, so the question of copyright infringement isn’t really on the table.