Although AdoptaUnTio does not require you to fill your profile with lots of information, you can do so if you want. To start using the app, all you need is your name and profile picture, but you can also add data about your height, weight, profession, favorite movies, education, body hair, and more.
The way you find people in AdoptaUnTio is very similar to other apps of this kind. With the app, you can see other profiles and indicate who you like and dislike. As is typical for this type of app, you can also purchase premium benefits to have more chances of finding people with common interests, although it's not necessary.
AdoptaUnTio is a good application for flirting. It is well-designed and has a good user base.