Lemme ask you. Asking a phone number from a woman is acceptable or not in a gym? It depends on whom you ask. Some women think that gym is strictly for working out. Other women are more open to this kind of approach.
Not every man has high EQ, can read the room and women's body language. Not every man is social savvy.
When building this dating app, I'm thinking of a group of men which are not so good approaching women. Getting courage to approach women is already exhausting. But it's not enough. You have to know which women are open to dating.