Hi Chloe,
Yes, you keep swiping on the dating apps even after 3 good dates. 3 good dates are no guarantee that this is the right person for you. Rest assured, the other person is swiping still.
It is always a good idea to have at least one other person from the dating apps that you are going out on regular dates with.
Coming to a point where you stop swiping or delete the dating apps altogether would require that you are months into dating someone and they have told you that they have stopped swiping, and even better, deleted their dating apps.
Always keep your dating options open until the point where you have both invested a significant amount of time seeing each other and have both come to a mutual understanding to date each other exclusively.