Yes, both Jungle Scout and Tiger offer a Free Trial.
Jungle Scout is designed for Medium Business and Small Business.
Tiger is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Jungle Scout Starts at $19/Month when Billed Yearly whereas for Tiger Starts at $39/Month when Billed Yearly.
Some top alternatives to Jungle Scout includes Sellics, AMZ.One, Marketplace Manager, AMZScout, AMZ Alert, AMZInsight, Helium 10, Optiseller, ProfitGuru and AMZRank.
Some top alternatives to Tiger includes Jungle Scout, Marketing 360, Split Dragon, Yo!Rent, Marketplace Manager, On-Site, Rent Rabbit, MarketPlus, MarketEngine and Marketcube.io.