Are you stuck with another tool simply because you have too much content stored with them and unlike RecurPost they do not offer exporting your own content?
Well, we have got you covered then. Our “Import Updates from Twitter” plugin allows you to import updates directly from your Twitter accounts into your RecurPost libraries. Here is a tutorial on how to do it
Update: We now support importing from Facebook pages, LinkedIn companies, Google+ pages and profiles, Twitter and Instagram profiles too.