I haven't been able to get notifications in IRIS for more than a week. At one point it showed me something like 3 notifications that were almost a week old and then nothing more.
I've been trying out Coracle and Satellite also. I can't even find a place to look at notifications on Coracle. Satellite shows me some notifications (conversations), but not likes.
I do most of my NOSTR on the desktop. I hate typing on a phone. I had preferred Iris, but am liking Satellite more and more. It does the best job I've seen at letting you look at a whole conversation.