Yes, both Pressbase and Mynewsdesk offer a Free Trial.
Pressbase is designed for Individuals, Medium Business and Small Business.
Mynewsdesk is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Pressbase begins at $39/Month when Billed Yearly, while pricing details for Mynewsdesk are unavailable.
Some top alternatives to Pressbase includes Mynewsdesk, Posted, Superdesk, Speedy Newsletter, Qualified, Workvivo, Blog To Social, Slog, Datanews, Nano, SharpDash and IFTTT.
Some top alternatives to Mynewsdesk includes Prowly, PressRush, Agility PR Solutions, Newswire, Meltwater, Muck Rack, Prezly, Presshub, PR Underground and Publicize.