Yes, both Flex.io and Etlworks Integrator offer a Free Trial.
Flex.io is designed for Large Enterprises, Medium Business and Small Business.
Etlworks Integrator is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Flex.io Starts at $29/User/Month whereas for Etlworks Integrator Starts at $300/Month.
Some top alternatives to Flex.io includes Import.io, Etlworks Integrator, Matillion ETL, Fivetran, Blendo, Flatly, K3, Etleap, Optimus Mine and ETLrobot.
Some top alternatives to Etlworks Integrator includes Talend Cloud Data Integration, Stitch, Matillion ETL, Blendo, Panoply, Equalum, K3, Datagaps ETL Validator, Etleap and ETLrobot.