Neither Backlogs nor ProductFlare offers a free trial.
Backlogs is designed for Medium Business and Small Business.
ProductFlare is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Backlogs Starts at $29/Month when Billed Yearly whereas for ProductFlare Starts at $1/Month.
Some top alternatives to Backlogs includes Aha!, ProductPlan, productboard, Productroad, FeedPiper, ProductFlare, Next Please, Primary, IdeaPlan and LaunchNotes.
Some top alternatives to ProductFlare includes Aha!, Roadmunk, ProdPad, ProductPlan, Jira, productboard, Productroad, ProdCamp, Next Please and IdeaPlan.