Fling probably has more free search options and filters compared to other dating websites. The basic search function allows you to search for other members using filters for age, country, zip code, sexual preference and gender. You can also limit your search to users who are currently online, users with photos, verifies accounts and those who are currently video streaming.
If these are not enough, you can access the advanced search options and look for members according to their eye color, height, hair color, body type, race and other specific profile fields. You can also search for users according to what they're into - whether it be threesomes or friends with benefits. You can also use the text field to type in keywords that you want your match to have in their profile.
You will get notifications whenever someone sends you a message; however, you cannot see the actual message unless you upgrade your account to premium. Similarly, you can't send messages to other users if you are a free user.