Singles50 is a matchmaking service for 40+ year old singles who are at their prime in the United States. Suitable matches are presented to users based on their compatibility. This is calculated through the scientific personality test which is taken at the point of registration. Not only that, users can see a description of their ideal partner to get more insight. With a streamlined website focused only on finding a long-time partner for members, Singles50 has a staggering 41% success rate over the years. Since its inception, it has gained over 200,000 members.