Office 365 vs Slack comparison

Read 71 Slack reviews

2,105 Views
824 Comparison Views

93% willing to recommend

Office 365

Comparison Buyer's Guide

Download the report

Executive Summary

We performed a comparison between Office 365 and Slack based on real PeerSpot user reviews.

Find out in this report how the two Content Collaboration Platforms solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed Office 365 vs. Slack Report (Updated: March 2020).

Download the complete report

Office 365 vs. Slack

March 2020

Helped 814,649 peers since 2012

Categories and Ranking

Office 365

Average Rating

8.4

Number of Reviews

Ranking in other categories

Content Collaboration Platforms (9th)

Slack

Average Rating

8.4

Number of Reviews

Ranking in other categories

Enterprise Social Software (3rd)

Mindshare comparison

While both are Messaging and Collaboration solutions, they serve different purposes. Office 365 is designed for Content Collaboration Platforms and holds a mindshare of 6.0%, down 7.1% compared to last year.
Slack, on the other hand, focuses on Enterprise Social Software, holds 11.4% mindshare, up 9.3% since last year.

Content Collaboration Platforms

Enterprise Social Software

Featured Reviews

Minos Pitsillides

IT Director at IT-Flow ltd

Mar 31, 2022

Excellent technical support, easy to install, but the price, while affordable, could be improved

Office 365 is scalable, but it is dependent on the situation. We don't have a problem with it from an organizational standpoint. They started with 100 employees and then added another 500 after six months, for a total of 600 employees. The setup of new users, new emails, and new applications to be assigned to the new users is straightforward. They also provide the PowerShell command, which they provided more, development type, like, for example, you can create users, not manually, but through a script that can create users, for example, 100 users in two, three minutes, and you don't do it manually. They're fantastic. My portfolio contains approximately 50 companies. Office 365 is our primary platform for the 50 companies. I only have one on G Suite, and the majority of them will be migrating from G Suite to 365 in the coming month.

Read full review

PaulButticaz

Account Manager at Eclipse Networks, Inc.

Jun 30, 2023

A competitive solution that improves collaboration and productivity

Slack has been around for a long time, and it's an industry leader. Of course, Salesforce owns Slack now and is starting to integrate into it. I have attended Slack conferences and met with product and support managers. They're an excellent organization. Choosing Slack depends on the organization's size, so you need to plan your deployment and make sure you put some controls and standards in place and not just turn it on. If you're a Slack shop, you will have to have something like a Zoom or Microsoft Teams platform for when you need to do video conferencing internally or externally. Many shops have both products, but they use Slack for collaboration, chat, and so on, and use Teams for video and audio conferences. At the end of the day, Slack is missing those capabilities, so either you're going to be a Slack/Zoom shop or you're going to be a Microsoft Teams shop. I rate Slack an eight out of ten.

Read full review

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"It's nice that it's an all-in-one solution and everything is all in one place."

"The solution is quite intuitive and easy to use."

"The most valuable feature is the integration between net and mobile devices."

"OneNote is the feature I use the most. We also frequently use the Power Apps features."

"The phone VoIP product provides genuine a unified communication solution."

"Quarantine email alerts to users to allow the email to their inbox (tricky but handy) - tricky if one doesn't have third-party email security, handy if one has got good third party email security)."

"My primary use case is for preparing presentations to teach, often on PowerPoint."

"There's a lot there in terms of apps and features."

More Office 365 pros

"It offers customization options for various applications, including integrations with Zoom for video calls and a wide range of other integration plugins."

"Slack is a very collaborative tool that makes it easier for me to communicate with the onboarding and billing teams."

"When we work with a platform like Slack, we can have one source without merging different document versions."

"The solution has a great user interface and functionalities. It has good features that we can use. We can integrate any third-party application with Slack so that it provides you with insights and updates in real-time on Slack itself."

"It's valuable for announcements and communicating between team members."

"The most valuable feature is the screen sharing, which works well."

"Slack makes it easy for employees to contact each other and exchange documents or information."

"Tasks and team huddles are the most valuable features of Slack."

More Slack pros

Cons

"The integration with mobile services is not so good. It's coming, but they could improve a lot."

"Using Office 365 is not that flexible on some mobile devices, like Android."

"I started working a lot on Microsoft Teams and I find it a bit vast. It should be divided out a bit so that someone can use it for basic functionality, like audio, video, and calls. Then, if someone wants more advanced functionality for file sharing and team creation, and so on, they could use a separate app."

"Sometimes the synchronization between the desktop and online is a little bit slow."

"A need that a company like ours has is that we want to be able to have data flow into one tool, for example, for all the management of tasks through the company and workflow of who is doing what and so on. There are no real solutions for this at the moment in Office 365. It would be nice if they could implement this in the next release, so we can have one solution from one company giving us the whole data and flow of data into the company."

"As a private user, I do not appreciate the cloud features, but I doubt that this is something Microsoft would consider a feature request."

"Could include integration with other single sign-on solutions."

"They should do more testing before product releases."

More Office 365 cons

"It could be more stable than one of its competitors."

"I would like to see the social sharing of blogs, announcements, or other news directly from the message corner."

"Integrating Slack with calendar functions would be advantageous, allowing for the seamless scheduling of meetings within the platform."

"When someone responds to my message in Slack, a new window opens. There should be an option to roll down the answers."

"Slack feels clustered and hence it should improve its design and UI."

"Sometimes, the servers are not available."

"Slack could add additional and better integrations."

"Slack tends to crash once a month."

More Slack cons

Pricing and Cost Advice

"The price of Office 365 is very expensive."

"For the moment, we are paying on a monthly basis because we are still adapting the support and how we want to proceed. I think we will move to paying for the annual license."

"We have a license to use this solution. We have an E3 license which covers many different solutions."

"I would rate the solution 3 out of 5 for the price. I think Microsoft presents a good solution concerning the price."

"Good reporting and good value subscriptions for international calls."

"The pricing is high and has actually caused us to limit the number of licenses we purchase due to budgeting."

"Licensing fees are paid on a monthly basis, or we prepay them."

"The pricing/licensing is easy to manage."

More Office 365 pricing and cost advice

"The solution is expensive."

"I would rate the tool's pricing a four out of ten."

"We use the free version that does not have a license."

"It is an affordable solution."

"Slack is definitely worth the money."

"The solution’s pricing is cheap."

"The pricing can range up to about twenty bucks a user. You can spend a lot of money, especially if you're talking about thousands of users. Generally speaking, Slack is less expensive than Teams. Slack doesn't include all the bells and whistles that Teams does. So you can go from a $6 license in Microsoft 365 to a $50 license per user per month, and there's a lot more you can do in the $50 license."

"Slack is not the cheapest solution, but that's okay."

More Slack pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which Content Collaboration Platforms solutions are best for your needs.

See recommendations

814,649 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Educational Organization

82%

Computer Software Company

Financial Services Firm

Government

Educational Organization

85%

Computer Software Company

Financial Services Firm

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

What are the differences between SnapComms and Office 365?

Here are the key differences between SnapComms and Office 365: SnapComms is specifically designed for employee communications, while Office 365 is a suite of productivity tools for bus...

What do you like most about Slack?

Nowadays, we don't need to visit an HR portal. Our marketing and human resources teams directly share details about birthdays, upcoming events, and important dates in Slack. Whether it's a training...

What is your experience regarding pricing and costs for Slack?

The solution has lots of competitors in the market. Slack is not the cheapest solution, but that's okay.

What needs improvement with Slack?

The solution’s initial setup is not very easy.

Amazon WorkDocs vs Office 365

Comparisons

ShareFile vs Office 365

Compared 18% of the time

Compared 18% of the time

Atlassian Confluence vs Office 365

Compared 16% of the time

Box vs Office 365

Compared 12% of the time

HCL Verse vs Office 365

Compared 8% of the time

More Office 365 Competitors

Symphony vs Slack

Compared 20% of the time

ChatWork vs Slack

Compared 17% of the time

Chatter vs Slack

Compared 16% of the time

Atlassian Confluence vs Slack

Compared 15% of the time

Zulip vs Slack

Compared 13% of the time

More Slack Competitors

Product Reports

Download Office 365 product report

Office 365

October 2024

Download Slack product report

October 2024

Also Known As

Microsoft Office 365, Office 365 Enterprise, Office 365 Enterprise E1, Office 365 Enterprise E3, Office 365 Enterprise E5, Office 365 ProPlus, Office 365 Business, Office 365 Business Essentials, Office 365 Business Premium, Office 365 F1

No data available

Learn More

Microsoft

Overview

Office 365 is more than just Word, Excel, PowerPoint, and Outlook. It provides powerful services like business-class email, online storage, and teamwork solutions that you can access from anywhere. Bring teams and resources together with solutions like Microsoft Teams and Skype for Business that make working together more productive and enjoyable regardless of where participants are located. Easily implement security and privacy controls to help protect business data and devices against malicious threats and help you meet your compliance obligations. Automatic updates ensure your employees will always have the latest features and security updates.

Slack is where work happens. It’s a digital workspace that powers your organization — all the pieces and the people — so you can get things done.

Slack brings all your communication together in one place. It's real-time messaging, archiving and search for modern teams.

Sample Customers

Me & the Bees Lemonade

Strava, The New York Times, Spotify, Blue Bottle Coffee Company, Eventbrite, Box, Circa, Stripe