Yes, both Shopify and Re:amaze offer a Free Trial.
Shopify is designed for Large Enterprises, Medium Business and Small Business.
Re:amaze is designed for Medium Business and Small Business.
The starting price of Re:amaze begins at $29/User/Month, 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 Re:amaze includes ZoomInfo Chat, Reamaze, Crisp, LiveEngage, DeskMoz, REVE Chat, Bleeper, Smartchat, ChatSupport, Freshchat and Let's Connect.