Yes, both Tiger and Jungle Scout offer a Free Trial.
Tiger is designed for Large Enterprises, Medium Business and Small Business.
Jungle Scout is designed for Medium Business and Small Business.
Pricing for Tiger Starts at $39/Month when Billed Yearly whereas for Jungle Scout Starts at $19/Month when Billed Yearly.
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.
Some top alternatives to Jungle Scout includes Sellics, AMZ.One, Marketplace Manager, AMZScout, AMZ Alert, AMZInsight, Helium 10, Optiseller, ProfitGuru and AMZRank.