I am sure you are already aware that we are gradually making all our paid products Joomla 4 compatible. We had recently released JGive for Joomla 4. The most comprehensive Invitations system for Joomla, Invitex is now available for Joomla 4 users! You can download Invitex v4.0.0 and the same package file will work on both Joomla 3 and Joomla 4.
NOTE:- We have updated multiple Plugin Triggers to make Invitex compatible with Joomla 4. We recommend NOT updating Invitex to Joomla 4 compatible version on your site if you are using other paid Techjoomla extensions which are not Joomla 4 compatible yet. (JTicketing, Quick2Cart, SocialAds, Shika, People Suggest etc). Please read the release notes carefully before you upgrade to the latest version of Invitex.