RetentionEngine offers Free Trial, but Custify does not.
RetentionEngine is designed for Large Enterprises, Medium Business and Small Business.
Custify is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for RetentionEngine Starts at $19/Month whereas for Custify Starts at $999.
Some top alternatives to RetentionEngine includes ChurnZero, ClientSuccess, ProsperStack, Custify, EasyCSM, Freshdesk Customer Success, Upzelo, ChurnKey and Freshdesk Customer Success (Formely Freshsuccess).
Some top alternatives to Custify includes Parlor, ClientSuccess, ProsperStack, Salesmachine, Catalyst, Vitally, Freshdesk Customer Success, Churn360 and Freshdesk Customer Success (Formely Freshsuccess).