Smartsheet vs OpenProject : Which is Better?

Smartsheet

Smartsheet is a software as a service (SaaS) application for collaboration and work management. Developed by Smartsheet.com

License: Commercial

Apps available for Online iPhone iPad

OpenProject is a web-based project management system for location-independent team collaboration. Developed by OpenProject GmbH

License: Open Source

Apps available for Mac OS X Windows Linux Online Self-Hosted

Feature	Smartsheet	OpenProject
Collaborative
Integrated File Sharing
Collaborative project management
Export to Google Spreadsheets
Gantt-charts
Import from Google Spreadsheet
Real time collaboration
Task Management
Team Collaboration
Web-Based
Document sharing
Kanban boards
Checklists
Content Filtering
Customizable
Built-in File Manager
Employee Time Tracking
Extensible by Plugins/Extensions
Subtasks
Hierarchical structure
Custom data fields
REST API
Content Templates
File sharing
Apps that Sync with Google Calendar
Custom templates
Work Item Tracking
Agile boards
Ad-free
Custom login portal
Encrypted Email
Accurate
User interface
Custom columns
Dependencies
Resource monitoring
Project Analysis
Computer-aided manufacturing (CAM)
Cost Calculator
Cost estimate
Email tracking
Project Tracking
Reporting
Splitting costs
Timeline
Wiki
MarkDown support
Database
Visual bookmarks
Recurring tasks
Dependency Tracking
gmail.
Support for Kanban Boards
Bug reporting
Unified inbox
Multiple Account support
Calendar integration
CalDAV
Exchange
Built-in RSS reader
Clean design
Sync across Devices