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Semaphor vs Trello System Properties Comparison

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Our visitors often compare Semaphor and Trello with Slack.

Editorial information provided by Project Management Zone
SystemsSemaphor  Xexclude from comparisonTrello  Xexclude from comparison
DescriptionSemaphor is a group chat and file sharing platform with a focus on privacy and encryption.Trello is a web-based project management and collaboration tool based on Kanban-like lists.
CategoryProject CollaborationProject Planning
Project Collaboration
Project Management Zone Rankinginfomeasures the popularity of Project Management SystemsScore 0.00
Rank #306
Score 857.09
Rank #5
DeveloperSpiderOakTrelloinfoowned by Atlassian, originally by Fog Creek Software
Websitespideroak.com/­semaphortrello.com
Technical documentationsupport.spideroak.com/­hc/­en-us/­categories/­115000424323-Semaphor-Messaginghelp.trello.com
Social network pages
Facebook120,849likes
LinkedIn37,021followers
Twitter185,420followers
Initial release20162011
LicenseWeb-based service (SaaS)infoSoftware-as-a-Service modelWeb-based service (SaaS)infoSoftware-as-a-Service model
Web-based architectureyesyes
Mobile appsAndroid
iOS
Android
iOS
APIinfoApplication Programming InterfaceyesyesinfoREST
Multi-useryesyes
Authentication mechanismLDAPinfoLightweight Directory Access Protocol
Active Directory
Password
Google sign-on
NotificationsDesktop push
Mobile push
Email
Mobile push
Project Planning Properties
Hierarchical tasksinfoSupport for parent-child relationships of tasksno
Recurring tasksinfoSupport for definition of tasks that occur repeatedlyno
Milestone trackinginfoMilestones indicate the completion of major deliverables, normally by completing a set of tasksno
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 startno
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 dependenciesno
Critical chain managementinfoThe critical chain method expands the critical path method by additionally taking resource constraints into accountno
Gantt chartsinfoBar chart to visualize a project's tasks and milestones schedulenoinfoavailable via 3rd party tools
PERT chartsinfoNetwork diagrams according to Program Evaluation Review Techniqueno
BaselinesinfoSupport for creating and using snapshots of a project's plan in terms of cost, scope and schedule no
Resource managementinfoSupport for managing a project's human and/or non-human resourcesno
Resource levelinginfoSupport for optimizing the allocation of a project's resourcesno
Time trackinginfoSupport for estimating and monitoring the time spent on a project's tasksno
Cost trackinginfoSupport for monitoring a project's expensesno
Earned value managementinfoSupport for tracking a project's performance and progress via earned value measurementsno
Risk managementinfoSupport for identifying and keeping track of project risks and risk-related activitiesno
Scrum supportinfoSupport for typical Scrum techniques such as sprints, backlogs and burn-down chartsno
Kanban supportinfoSupport for typical Kanban techniques such as visualization of tasks on boards using cardsyes
Project portfolio management infoSupport for collectively managing a set of current or proposed projects, e.g. by evaluation and prioritization of projectsno
Project Collaboration Properties
Project wikinono
Discussion forumyesinfoconversationsyesinfoconversations
Online chatyesno
Audio conferencingnono
Video conferencingnono
Screen sharingnono
Calendar sharingnonoinfointegration with external calendar tools is possible
Contact sharingnono
Document sharingyesyesinfocard attachments
File versioningnono

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More Resources
SemaphorTrello
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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