Official Monerujo F-Droid repo

Open the client, select "manage repositories" from the overflow menu and then add the repo URL below. Just opening the URL on a device that has F-Droid installed should work in most cases as well.

Direct HTTPS

https://f-droid.monerujo.io/fdroid/repo
monerujo.io

Signing Key Fingerprint

If you would like to manually verify the fingerprint (SHA-256) of the repository signing key, here it is: 
A8 2C 68 E1 4A F0 AA 6A 2E C2 0E 6B 27 2E FF 25 E5 A0 38 F3 F6 58 84 31 6E 0F 5E 0D 91 E7 B7 13

P.S. Yes, we know this site is ugly. Quit Yer Complainin’! Argghhh!