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Open Atrium vs OpenProject vs Trello System Properties Comparison

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Editorial information provided by Project Management Zone
SystemsOpen Atriuminfoformerly 8Trees  Xexclude from comparisonOpenProject  Xexclude from comparisonTrello  Xexclude from comparison
DescriptionOpen Atrium is an open source collaboration tool based on Drupal.Open source, web-based project management system. OpenProject is a fork of ChiliProject, which in turn is a fork of Redmine.Trello is a web-based project management and collaboration tool based on Kanban-like lists.
CategoryProject CollaborationProject Planning
Issue Management
Project Collaboration
Project Planning
Project Collaboration
Project Management Zone Rankinginfomeasures the popularity of Project Management SystemsScore 4.22
Rank #125
Score 6.84
Rank #88
Score 859.41
Rank #5
DeveloperPhase2 TechnologyOpenProject FoundationTrelloinfoowned by Atlassian, originally by Fog Creek Software
Websitedrupal.org/­project/­openatriumopenproject.orgtrello.com
Technical documentationdocs.openatrium.comopenproject.org/­helphelp.trello.com
Social network pages
Twitter3,570followers
Twitter5,064followers
Facebook122,062likes
LinkedIn41,283followers
Twitter186,190followers
Initial release200920122011
LicenseOpen SourceinfoGPL 2Open SourceinfoGPL 3Web-based service (SaaS)infoSoftware-as-a-Service model
Web-based architectureyesyesyes
Programming languagePHPRubyinfoRuby on Rails
Operating systemsLinux
OS X
Unix
Windows
Linux
OS X
Windows
Mobile appsnonoAndroid
iOS
APIinfoApplication Programming InterfaceyesyesinfoRESTyesinfoREST
Multi-useryesyesyes
Authentication mechanismPassword
LDAPinfoLightweight Directory Access Protocol
OpenID
Password
LDAPinfoLightweight Directory Access Protocol
Password
Google sign-on
NotificationsEmailEmail
RSS feeds
Email
Mobile push
Project Planning Properties
Hierarchical tasksinfoSupport for parent-child relationships of tasksyesno
Recurring tasksinfoSupport for definition of tasks that occur repeatedlynono
Milestone trackinginfoMilestones indicate the completion of major deliverables, normally by completing a set of tasksyesno
Task dependenciesinfoDependencies between tasks are logical relationships that restrict the sequence of task executions, e.g. one task must be completed before another task can startnono
Critical path managementinfoThe critical path method calculates the set of tasks that cannot be delayed without increasing the project's duration, taking into account task dependenciesnono
Critical chain managementinfoThe critical chain method expands the critical path method by additionally taking resource constraints into accountnono
Gantt chartsinfoBar chart to visualize a project's tasks and milestones scheduleyesnoinfoavailable via 3rd party tools
PERT chartsinfoNetwork diagrams according to Program Evaluation Review Techniquenono
BaselinesinfoSupport for creating and using snapshots of a project's plan in terms of cost, scope and schedule nono
Resource managementinfoSupport for managing a project's human and/or non-human resourcesnono
Resource levelinginfoSupport for optimizing the allocation of a project's resourcesnono
Time trackinginfoSupport for estimating and monitoring the time spent on a project's tasksyesno
Cost trackinginfoSupport for monitoring a project's expensesyesno
Earned value managementinfoSupport for tracking a project's performance and progress via earned value measurementsnono
Risk managementinfoSupport for identifying and keeping track of project risks and risk-related activitiesnono
Scrum supportinfoSupport for typical Scrum techniques such as sprints, backlogs and burn-down chartsyesno
Kanban supportinfoSupport for typical Kanban techniques such as visualization of tasks on boards using cardsnoyes
Project portfolio management infoSupport for collectively managing a set of current or proposed projects, e.g. by evaluation and prioritization of projectsnono
Issue Management Properties
Hierarchical issuesyes
Custom fieldsyes
Custom workflowsyes
Project Collaboration Properties
Project wikiyesyesno
Discussion forumyesyesyesinfoconversations
Online chatnonono
Audio conferencingnonono
Video conferencingnonono
Screen sharingnonono
Calendar sharingyesnonoinfointegration with external calendar tools is possible
Contact sharingnonono
Document sharingyesyesyesinfocard attachments
File versioningnoyesno

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More Resources
Open AtriumOpenProjectTrello
Project Management Zone blog posts

Trello is the Project Management System of the Year for the third year in a row
3 January 2019, Matthias Gelbmann

Trello is the Project Management System of the Year for the second year in a row
4 January 2018, Matthias Gelbmann

Trello is the Project Management System of the Year
4 January 2017, Matthias Gelbmann

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