Yes, both Smartsheet and Customer.io offer a Free Trial.
Smartsheet is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Customer.io is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Smartsheet Starts at $9/month when yearly whereas for Customer.io Starts at $100/Month.
Some top alternatives to Smartsheet includes Miro, Process Street, Wrike, Notion, Jira, Microsoft PPM, Trello, TeamGantt, monday.com, Asana, Teamwork, ProjectManager.com, Microsoft Project and Airtable.
Some top alternatives to Customer.io includes Outgrow, ActiveCampaign, CleverTap, Moosend, Omnisend, ActiveTrail, Iterable, Hubspot Marketing Hub, Klaviyo, SendGrid, MailChimp, StreamSend, Adobe Marketo Engage and Contactspot.