Some of us have tested Coinos.io before for sending lightning payments but it didn't do keysend but thanks to @ericpp now it does.
StableKraft.app has always supported it but it didnt do keysend until now so it wasnt really worth testing out.
Very similar to the old Alby and they are anonymous so no email signup needed. Make sure to write down the username and password since its not tied to anything so you cant recover it.
https://pc20.nyc3.cdn.digitaloceanspaces.com/Coinos%20SK%20demo.mp4