StackOverflow
Trello offers Free Trial, but Chargify does not.
Chargify is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Trello is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of Trello begins at $5/User/Month when Billed Yearly, while pricing details for Chargify are unavailable.
Some top alternatives to Chargify includes Invoice Ninja, Invoiced, Hiveage, InvoiceBerry, Invoicera, Invoicely, Invoice2go, Invoice Home, Zervant and Moon Invoice.
Some top alternatives to Trello includes monday.com, Quickbase , Smartsheet, ClickUp, Freshbooks, Jira, Basecamp, Wrike, Zoho Projects, Asana, Teamwork, ProjectManager.com, Microsoft Project, Worksuite, Trackboard, Quick Base, Todoist, Resource Guru and Height.