WeViral. This auto poster tool will help you in posting to multiple Facebook groups and facebook page. You can schedule your posts for a later time and create custom auto comment which you can use for bumping the posts on groups.
The Facebook Version has so many functions: auto follow, unfollow, add friends, unfriend, accept friend requests, like pages/posts, like/reply comments, share, comment, send message; auto post, post on wall/timeline/groups, create groups, join/leave groups, invite user on groups.
Begin to build a set of buyers and prospects together with every automatic campaign which you conduct. Begin now! EPostPro is just a face-book car poster tool built to assist you place your Text/links / Pictures / Videos on pages and face book groups. EPostPro Permits You to talk about push Face-book visitors and your articles to a Site / blog/page marketing
I have used Publer and i really like. it is really easy to use and I would say it is suitable for beginners. Not difficult at all to understand how does it work, wish yo good luck