Communicate with him first and say that you care about it. If he can change, if you believe he can change, you don't have to break up. If you don't believe that he can change, then break up. If he doesn't change, you can convince yourself to accept it, so you don't have to break up. You can't accept it, so break up. Maybe to meet new friends. If you are particularly concerned, ask him. If he is willing to give up these dating software for you, then don't break up. If not, then break up. Experience tells you that it is not impossible for a boy to have a girlfriend. If he really cared about you, he wouldn't do it at all. Obviously, he just wants to play with you, and he will be stupid when he gets serious.
It is said on the Internet that the boy who can say "No matter how many girls I chat with, you are definitely my favorite" must be love rat, but I don't quite agree with him. I have to admit that some boys really like to pick up girls and chat with the opposite sex, and it is never possible to chat with only one girl, but it does not mean that he is love rat. ...
Ok ... actually, this kind of boy is more of a playboy, but a playboy is only expressed in words, not in actions. For personal reasons, I don't want to use the word love rat to describe him. But for girls, boyfriends like to use dating software, and meeting many strange opposite sex will hurt people. I hope I can help you.