To use the app, logically first you have to create for themselves an account profile, where you will post your photo and your interests and what exactly you are looking for.
Once you have done this, all you have left is to wait for someone who will contact you or look among the rest of the users for someone that interests you. You can filter by location, interests, age… So to find my «better half» will be much easier.
The use of «Serious Dating» is completely free, but in application there are many options that cost money. One of the most popular of them will allow you, for example, highlight your profile among other social network users.