In order to add feeds quickly it has built in feed search. Just type in the search keywords (e.g. news, sports, lifestyle, finance, games, ...) or the URL of a feed or the URL of the web site it is published.
All feeds are cached once they have been loaded. The blue dot denotes all feeds which are available for offline reading.
You selection of feeds is stored locally in a cookie. There is no need to login or register.