Yes, both Mergado and Optiseller offer a Free Trial.
Mergado is designed for Large Enterprises, Medium Business and Small Business.
Optiseller is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Mergado Starts at $14/Month whereas for Optiseller Starts at $29.17/Month when Billed Yearly.
Some top alternatives to Mergado includes Shopify, Zoho Commerce, CommerceUp, iSeller, SellerApp, Optiseller, Toolsy, 1App and Semrush E-Commerce Apps (Sellzone).
Some top alternatives to Optiseller includes Jungle Scout, Cenports, SellerCenter, Zoho Commerce, Marketplace Manager, Equip, MyEasyStore, Epsilo, iSeller, SellerApp and Omnyfy.