Basecamp offers Free Trial, but Slash does not.
Basecamp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Slash is designed for Individuals, Medium Business and Small Business.
Pricing for Basecamp Starts at $15 whereas for Slash Starts at $5/Month when Billed Yearly.
Some top alternatives to Basecamp includes Smartsheet, Miro, Process Street, Wrike, Notion, Jira, Trello, TeamGantt, Zoho Projects, monday.com, Asana, Teamwork, ProjectManager.com, Quick Base, ClickUp and Project.co.
Some top alternatives to Slash includes Connecteam, Smartsheet, Miro, Todoist, Notion, Process Street, Wrike, nTask, Microsoft To Do, TickTick, Today, ClickUp, WeekToDo, SimplyDone, TasksBoard, Toodledo and Taskable.