Yes, both Shopify and ProveSource offer a Free Trial.
Shopify is designed for Large Enterprises, Medium Business and Small Business.
ProveSource is designed for Large Enterprises, Medium Business and Small Business.
The starting price of ProveSource begins at $18/Month when Billed Yearly, while pricing details for Shopify are unavailable.
Some top alternatives to Shopify includes PrestaShop, CS-Cart, WooCommerce, Shopify Plus, BigCommerce, AmeriCommerce, 1ShoppingCart, Zoho Commerce, Magento Open Source, Web.com, iSeller and Dukaan.
Some top alternatives to ProveSource includes Fomo, Proof, JustProof, Conversion Plus, Super Social Proof, Sooproof, Social Proofy, Trustpulse, Proofly and Prooven.io.