GamiPress does have support for BuddyPress. Here is the link: https://wordpress.org/plugins/gamipress-buddypress-integration/
I don't know about the other plugins though.
currently we don't have such plans, because Gamipress doesn't have any
integration with Buddypress, vendor plugins, cashback plugins which are
very important to us
I've been using myCred and your supported hooks but would like to use GamiPress instead. Is it possible for you to add the hook support to GamiPress?