Provide AppStream data
Each desktop application should provide an appdata file in order to be present on Software Centers and be able to give more details. Here is a link to the specification: https://www.freedesktop.org/software/appstream/docs/sect-Metadata-Application.html
For some apps as QHaveDate, I strongly recommend you to provide additional data to the appdata file preventing kinds to be able to find such apps, here is the Open Age Ratings Service website allowing to add such information with a simple copy/paste: https://odrs.gnome.org/oars
Thank you for your commitment.