GrossGrade exists, and continues to be improved, thanks to a community of people who take part in the BETA-testing. If GrossGrade is useful and interesting to you, please, take a part in discussions at the official facebook page and vk community.
The current developing status is early BETA, and the author of the program is a single mortal man, so please, don't judge severely for the unfinishings existing in this BETA or for incompletely actual documentation. In this case "BETA" stands for "beta than nothing".