I've been using it for months, and yes they did stop giving you notifications, probably because there is a problem on the server. But that rarely happens, so you can count on it, at least for now.
Otherwise, i cant find any.
I don't recommend to use a stand-alone app just to create notifications when there is a transaction on your wallet, I think it is a waste of resource. If I remember correctly, there is a mobile wallet that will give you notifications too, but I forgot the name. Will update this if I found one.