Yes, both Offer18 and Affiliatise offer a Free Trial.
Offer18 is designed for Large Enterprises, Medium Business and Small Business.
Affiliatise is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Offer18 Starts at $49/Month whereas for Affiliatise Starts at $49.
Some top alternatives to Offer18 includes AffTrack, Post Affiliate Pro, TrackingDesk, Refersion, Affiliatise, TUNE, OffersHub, Affiliatics, Evotrack and Trackdesk.
Some top alternatives to Affiliatise includes Affise, AffTrack, Post Affiliate Pro, Refersion, OffersHub, Affilo, iDevAffiliate, Affiliatics, Tapfiliate and Sir Filiate.