Neither Zapier nor Custify offers a free trial.
Zapier 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 Zapier Starts at $19.99/Month when Billed Yearly whereas for Custify Starts at $999.
Some top alternatives to Zapier includes Pabbly Connect, Integrately, eZintegrations, Zoho Flow, ZapUp by 500apps, SaaS Integrator, Built.io Flow, Activepieces and ApiX-Drive.
Some top alternatives to Custify includes Parlor, ClientSuccess, ProsperStack, Salesmachine, Catalyst, Vitally, Freshdesk Customer Success, Churn360 and Freshdesk Customer Success (Formely Freshsuccess).