I used coffee and Begal for a year. You start a casual chat and then within 7 days you need to get phone number before chat closes.
My experience is you need to meet the girl in person. So after exchanging phone/whatsapp numbers, start meeting up in a weekend.
Maybe 2-3 dates you can decide if the person is a good match.
For a girl and myself that pass through the stages of chat, change numbers, and then meet. It's about one in 3 months. (maybe competition is strong due to all the high quality men 😅)