Yes, both Constant Contact and Ninja Forms offer a Free Trial.
Constant Contact is designed for Large Enterprises, Medium Business and Small Business.
Ninja Forms is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Ninja Forms begins at $49/Year, while pricing details for Constant Contact are unavailable.
Some top alternatives to Constant Contact includes Pipedrive, Campaigner, Moosend and SMTP.
Some top alternatives to Ninja Forms includes Formidable Forms, Cognito Forms, Formsite, Typeform, Gravity Forms, Jotform, 123FormBuilder, weForms, WPForms, Forms, Forms.io by 500apps and FormLink.