Yes, both Easynote and NoteStack offer a Free Trial.
Easynote is designed for Large Enterprises, Medium Business and Small Business.
NoteStack is designed for Freelancers, Medium Business and Small Business.
Pricing for Easynote Starts at $29/User/Month whereas for NoteStack Starts at $7/Month.
Some top alternatives to Easynote includes Todoist, Wrike, Smartsheet, TeamGantt, Asana, Teamwork, ProjectManager.com, nTask, Today, MeisterTask, TaskOPad, ClickUp and SmartTask.
Some top alternatives to NoteStack includes Evernote, Brainio, Amanote, Notes.io, Triqla, Microsoft OneNote, Notability, Einote and Note-Smart.