Yes, both Publisher Discovery and Post Affiliate Pro offer a Free Trial.
Publisher Discovery is designed for Large Enterprises, Medium Business and Small Business.
Post Affiliate Pro is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Publisher Discovery Starts at $116/Month when Billed Yearly whereas for Post Affiliate Pro Starts at $129/Month.
Some top alternatives to Publisher Discovery includes AffTrack, Post Affiliate Pro, Affiliatise, OffersHub, Affilo, Affiliatics, Sir Filiate, FOSHO AFF, Affistash and AffSync.
Some top alternatives to Post Affiliate Pro includes Affise, AffTrack, TrackingDesk, Refersion, Affiliatise, TUNE, OffersHub, Affilo, Promocate and Affiliatics.