I recently tried to send my referral link to my friend and I can't tell if it's still working.
I don't want to spam my referral link so you should try with your own.
If you go to the link, it now shows signup?_branch_match_id=ABUNCHOFNUMBERS in the URL, but the form asks you to enter a referral code and your email address. Your referral code is no longer anywhere to be seen on that page.
edit: Resolved. It was my umatrix preventing some scripts from app.link and then branch.io.
Resolved now thanks.