Oakley
FastField offers Free Trial, but Survio does not.
FastField is designed for Individuals, Medium Business and Small Business.
Survio is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for FastField Starts at $23/user/month when yearly whereas for Survio Starts at $18.33/Year.
Some top alternatives to FastField includes Cognito Forms, Formsite, Typeform, MightyForms, 123FormBuilder, stepFORM, Microsoft Forms, GoCanvas, Jotform Mobile Forms, Forms.io by 500apps, FormLink and Formee.
Some top alternatives to Survio includes SurveyMonkey, SmartSurvey, QuestionPro, SurveyMethods, SurveySparrow, Survmetrics, Couchsurvey, Survs, Key Survey Software, SurveyRock, easyfeedback and Cognito Forms.