Sending and receiving messages on No Strings Attached are limited to premium members. However, if you purchase the special feature "Open the Door", even free members can start communicating with you.
Standard members can still send flirts, as well as browse member videos to watch for free. Free members can also use the website's search functions to look for potential partners.
All members can add profiles to their 'hotlists' and can even broadcast their own webcams.
The site also has adult camera models who go on live webcam streams for people who are looking for fun. Members can join these models' fan clubs, send them tips, and even go on a one-on-one video chatting session.