Slack & Yammer & Clarizen 2025 Comparison

Slack

Pricing Model

Free

Monthly payment

One-time payment

Annual Subscription

Quote-based

List of Features

Slack

List of Features

Conversation channels
Private groups
Messaging
Message history
Search
Snippets
Webhooks
Collaboration
File sharing
File browsing
Voice/video calls
Feedback
Progress archive
Notifications
Integrations
Synchronization
Open API
iOS & Android apps
Data security
Data encryption
Single Sign-On
Two-factor authentication

Pricing Info

Slack

Pricing Info

Slack offers three SMB and enterprise pricing packages for users to choose from. Give the details a look, and select your plan:

Free – No limits on time or users

Searchable message archives, up to 10k of your team’s most recent messages
10 apps or service integrations
Native apps for iOS, Android, Mac & Windows Desktop
Two-person voice and video calls
5GB total file storage for the team
Two-factor authentication

Standard – $6.67 per user/month billed annually ($8 billed monthly)

All features from the Free plan
Unlimited searchable message archives
Unlimited apps and service integrations
Custom retention policies for messages and files
Guest access
Priority support
OAuth via Google
Mandatory two-factor authentication
Custom User Groups to reach a team or department
Group voice and video calls
10GB file storage per team member

Plus – $12.50 per user/month billed annually ($15 billed monthly)

All features from the Standard plan
SAML-based single sign-on (SSO)
Compliance Exports of all messages
99.99% Guaranteed Uptime SLA
24/7 Support with 4-hour response time
User provisioning and deprovisioning
Real-time Active Directory sync with OneLogin, Okta, Centrify, and Ping Identity
20GB file storage per team member

Enterprise – By quote

Fully searchable archive with unlimited messages
Unlimited external integrations
Free native apps for iOS, Android & Mac Desktop
Detailed usage statistics, reporting & analysis
Custom message retention policies
Guest access
Priority support

Learn more about Slack pricing

Integrations

Slack

Integrations

Over 1,500 apps integrate with Slack. The complete list can be found at the Slack App Directory.

Languages Supported

English

Chinese

German

Hindi

Japanese

Spanish

French

Russian

Italian

Dutch

Portugese

Polish

Turkish

Swedish

Arabic

Prominent Clients

Dow Jones, eBay, NBCUniversal, The Wall Street Journal

Available Devices

Windows

Linux

Android

iPhone/iPad

Mac

Web-based

Windows Mobile

Company Size

Small Business

Large Enterprises

Medium Business

Freelancers

Available Support

email

phone

live support

training

tickets

General Info

A communication software that unifies all your channels in one searchable and easily accessible online location. Completely mobile-ready, it supports real-time messaging, voice, and video calling, and allows file sharing and archiving within the platform. It also integrates with over 1,500 external apps, making it highly flexible.

Company Email

pr@slack.com

Contact No.

+1-415-805-8989

Company's Address

680 Folsom St #145
San Francisco, CA 94107
USA

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Popular Slack Alternatives

Product Name

Score

Slack Best Alternatives for 2025 9.4

Slack Best Alternatives for 2025 8.5

Slack Best Alternatives for 2025 8.0

Slack Best Alternatives for 2025 6.5

Yammer

vs

NOAWARDS
YET

SmartScore™

9.1

User Satisfaction

93%

Pricing:

Starting from $5.00

Yammer

Pricing Model

Free

Monthly payment

One-time payment

Annual Subscription

Quote-based

Yammer

List of Features

Groups
External Collaboration
Search
Inbox
Notifications
Discovery Feed
Integrations

Yammer

Pricing Info

Yammer is available in three payment plans, depending on the features and the scale of the business which is about to use them:

Office 365 Business Essentials $5.00/month/user

Email with 50 GB mailbox
1 TB File storage/sharing
HD Video Conferencing,
Office Online

Office 365 Business $8.25/month/user

Office for PC and mobile devices
1 TB File storage/sharing
Mobile Apps

Office 365 Business Premium $12.50/month/user

All features of Business and Business Essentials
Fully installed office and HD Video Conferencing

Learn more about Yammer pricing

Yammer

Integrations

Yammer is now a part of the Office 365 package, and its REST APIs can therefore be used to integrate it with multiple Office Platforms and third-party apps:

SharePoint
Zapier
Slack
Zendesk
GoodData
Smarsh
Bagdeville
Hype
Buzztale
Hootsuite
Mindflash
Office Vibe

Languages Supported

English

Chinese

German

Hindi

Japanese

Spanish

French

Russian

Italian

Dutch

Portugese

Polish

Turkish

Swedish

Arabic

Prominent Clients

DHL, Shell, Capgemini, Nationwide, Razorfish

Available Devices

Windows

Linux

Android

iPhone/iPad

Mac

Web-based

Windows Mobile

Company Size

Small Business

Large Enterprises

Medium Business

Freelancers

Available Support

email

phone

live support

training

tickets

General Info

Yammer is a software tool that manages internal corporate communication and networks with external partners.
Dubbed as the "Business Facebook" due to its intuitive and user-friendly interface that's similar to its counterpart. To maintain the exclusivity, only employees with an existing corporate email address can be allowed to register and join.

Company Email

Contact No.

1 800 865 9408

Company's Address

Yammer Comparisons

Name

Comparision

Yammer vs Wrike 2025

Yammer vs Streams 2025

Yammer vs PDFfiller 2025

Yammer vs Zig 2025

Yammer vs ScreenConnect 2025

Yammer vs Aufait Intranet Starter Pack 2025

Yammer vs dapulse 2025

Yammer vs WebWork Time Tracker 2025

Yammer vs Smartsheet 2025

Yammer vs ContractZen 2025

Popular Yammer Alternatives

Product Name

Score

Yammer Best Alternatives for 2025 9.2

Yammer Best Alternatives for 2025 8.6

Yammer Best Alternatives for 2025 8.0

Yammer Best Alternatives for 2025 7.5

Yammer Best Alternatives for 2025 7.3

Clarizen

NOAWARDS
YET

SmartScore™

9.1

User Satisfaction

100%

Pricing:

By quote

Clarizen

Pricing Model

Free

Monthly payment

One-time payment

Annual Subscription

Quote-based

Clarizen

List of Features

Collaborative Planning
Task Management
Issue Tracking
Project Portfolio Management
Salesforce Integration
Personal Calendars
Billable & Non Billable Work Items
Project Percentage Completion Reporting
Real Time Team Updates
Expenses
Project Scheduling, Gantt Chart
Time Tracking
Budget Tracking
Resource Management
Mobile App for iPhone and Android
Project Hierarchy
Role & Assignment Per Project
Templates
Document Sharing
Financial Indicators
Version Control
Document Management
Risk Management
File Sharing
Scheduling
Professional Services Management
Issue Tracking
Workforce Management
Executive Dashboards
Knowledge Management
Methodology
Template customization
Multi-currency
Multi-language
Custom fields
Data import/export to MS projects

Clarizen

Pricing Info

Clarizen offers a free 30-day trial to test out its features and offerings in your workflow. After the trial period, you may choose among these two options:

Enterprise Edition – By quote

150 Custom Fields
15 Rollup Summary Fields
10 Relation Summary
200 Business Rules
100 Custom Actions
15 Clarizen Panels
50 Scheduled Components (Reports, Dashboards, Workflows)
10 Global Mailboxes
Unlimited Entry Specific Mailboxes
200 InterAct Rules
2000 Emails for Support Mailboxes per Day
1000 Emails to Global and Entity Mailboxes per Day
1 GB Storage per Paid Seat

Unlimited Edition – By quote

4000 Custom Fields
80 Rollup Summary Fields
15 Relation Summary
400 Business Rules
300 Custom Actions
100 Clarizen Panels
Up to 120/day Scheduled Components (Reports, Dashboards, Workflows)
10 Global Mailboxes
Unlimited Entry Specific Mailboxes
1000 InterAct Rules
7000 Emails for Support Mailboxes per Day
5000 Emails to Global and Entity Mailboxes per Day
Unlimited Storage per Paid Seat

Aside from these varied thresholds, both options include the same features in their offerings. The pricing information is only available upon quote request to tailor solutions that fit with your organization’s needs. There are also 4 license types to choose from under categories such as Full, Team Member, Time & Expense, and Social.

Learn more about Clarizen pricing

Clarizen

Integrations

Clarizen provides numerous out-of-the-box integrations with a multitude of mission-critical systems/processes. The comprehensive list includes Microsoft Project, Excel, Outlook, Lotus Notes, Google Docs, Box.com, JIRA, Intacct, Team System (for engineering), TestStuff, Salesforce.com, iCal, iPhone, Android, Intuit Quickbooks, Browsers (toolbars and apps), and Mulesoft SSO tools (OneLogin, Okta, SiteMinder, ADFS, PingIdentity).

Additionally, Clarizen’s open API (supporting both REST and SOAP), and MuleSoft connector can be used to integrate with other ALM tools. The robust API and email engine allows fast integration to fit within and add value to existing enterprise ecosystems. Clarizen’s Apps Marketplace also provides additional apps and integrations for the different segments and use cases, and pre-built project request forms and automatic processes that can be used as Auto-assign task managers. Clarizen says it is continuously working on improving existing integrations as well as adding new ones.

Languages Supported

English

Chinese

German

Hindi

Japanese

Spanish

French

Russian

Italian

Dutch

Portugese

Polish

Turkish

Swedish

Arabic

Prominent Clients

Mazda, Cisco, Disney, EA, Fed Ex, HP, Western Union, Zendesk

Available Devices

Windows

Linux

Android

iPhone/iPad

Mac

Web-based

Windows Mobile

Company Size

Small Business

Large Enterprises

Medium Business

Freelancers

Available Support

email

phone

live support

training

tickets

General Info

A social collaboration and project management tool that improves team productivity. It facilitates efficient workflows, connecting social context with tasks and projects. Workflow automation also helps save time on administrative tasks and focus on high-value goals. Meanwhile, security features and user permissions minimize risks.