Yes, both SupplySpy and Optiseller offer a Free Trial.
SupplySpy is designed for Large Enterprises, Medium Business and Small Business.
Optiseller is designed for Large Enterprises, Medium Business and Small Business.
Pricing for SupplySpy Starts at $19/Month whereas for Optiseller Starts at $29.17/Month when Billed Yearly.
Some top alternatives to SupplySpy includes Jungle Scout, Cenports, SellerSkills, Inventory Source, Fulfill, Super Chain, SellerApp, Sellerboard, AMZInsight, Optiseller and ProfitGuru.
Some top alternatives to Optiseller includes Jungle Scout, Cenports, SellerCenter, Zoho Commerce, Marketplace Manager, Equip, MyEasyStore, Epsilo, iSeller, SellerApp and Omnyfy.