4-6 photos are recommended for a dating profile. Yes, some apps require just one photo or allow up to 9-23 photos but that doesnt mean you should use the bar minimum or maximum. You will be judged by your worst photos so dont use bad ones.
How many pictures do you need for a Tinder profile?
Dating apps require someone to like one photo enough to look at more photos of you, and then like those five photos enough to read your painstakingly-crafted bio about how you like burritos (we all do). You dont have much time or space to make your first impression count.
How many photos should you have on match?
You should aim for 6 unique photos (unique outfits, locations, poses etc.), 4 at the absolute minimum but 6 is recommended. Apps like Tinder and Match.com allow for more photos but dont – usually there will be bad photos in those above 6 and you will be judged by your worst photo.