Do You Know About These 6 Secret LinkedIn Apps for Business Expansion? Posted byTed Prodromou April 8, 2019May 22, 2021 Leave a comment on Do You Know About These 6 Secret LinkedIn Apps for Business Expansion? If you haven’t heard of all the following LinkedIn apps, don’t be surprised: They’re not all common knowledge. But now that you know they’re there, it’s time to take advantage of their power.