Yes, both n8n.io and Nintex offer a Free Trial.
n8n.io is designed for Freelancers, Medium Business and Small Business.
Nintex is designed for Large Enterprises, Medium Business and Small Business.
Pricing for n8n.io Starts at $20/month when yearly whereas for Nintex Starts at $1,405/Month.
Some top alternatives to n8n.io includes Zapier, Integrately, Nintex, SaaS Integrator, automation.re, Built.io Flow, Phiona, NaaS and Pipedream.
Some top alternatives to Nintex includes ProcessMaker, Microsoft Power Automate, K2, IBM Business Automation Workflow, Fusion Platform, ProcessPlan, ProcessPolicy.com, Bautomate, Withprocess.com and BPMapp by 500apps.