How to use
Select the required contacts and click on the share button to send the contacts. There are a few available sharing formats: VCF, CSV and plain text. Clicking on a contact opens its details. Before sending, you can select the specific data of the contact. Clicking on a contact icon opens it in the phone book.
Premium features
In the premium version, you can share an unlimited number of contacts (the free version has a limit of 50 contacts). It also has no ads.
You can find more information about purchases and subscriptions here.