Yes, both Logstash and dataloader.io offer a Free Trial.
Logstash is designed for Large Enterprises, Medium Business and Small Business.
dataloader.io is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Logstash Starts at $16/Month whereas for dataloader.io Starts at $99/User/Month.
Some top alternatives to Logstash includes Elasticsearch, Etlworks Integrator, Splunk Enterprise, Matillion ETL, Fivetran, K3, Datagaps ETL Validator, Etleap, Optimus Mine and ETLrobot.
Some top alternatives to dataloader.io includes Import.io, Etlworks Integrator, Matillion ETL, Fivetran, Panoply, Flatly, Data Loader for Marketo, Etleap, ETLrobot and Salesforce Connect.