Of course! With both Monthly or Annual subscription you can use all Flaticon's Selection icons with no need of attribution. It doesn't matter if you are going to use them for a commercial purpose or a personal project. With Flaticon's Plans you will obtain the licence of every icons you download for its free use.
The only thing you can't do is redistribute or trade with our original files. For example, you can use them to create an app and sell it, but you must not share the AI, EPS, PSD file to your clients/users.