Compare Office 365 vs. Slack

Office 365 is ranked 2nd in Enterprise Social Software with 11 reviews while Slack is ranked 4th in Enterprise Social Software with 8 reviews. Office 365 is rated 8.0, while Slack is rated 8.8. The top reviewer of Office 365 writes "Multi-user editing and integration with OneDrive brings better focus and efficiency". On the other hand, the top reviewer of Slack writes "Real-time collaboration and simultaneous document editing increases team productivity". Office 365 is most compared with Atlassian Confluence, TeamViewer and HCL Verse, whereas Slack is most compared with Symphony, SharePoint and Workplace by Facebook. See our Office 365 vs. Slack report.
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5,675 views|4,688 comparisons
Slack Logo
7,024 views|5,541 comparisons
Most Helpful Review
Find out what your peers are saying about Office 365 vs. Slack and other solutions. Updated: November 2019.
378,124 professionals have used our research since 2012.
Quotes From Members

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

Pros
The most valuable feature is the integration with OneDrive, which has allowed us, a small business, easy access to a cloud environment, with no need to back up the data from five different computers.Many of the features in Office 365 are good, but I think Excel is a very good tool.It's very stable.The functionality that is most valuable is the solution's ability to detect patient data in email attachments. Whenever a user sends out an email with patient data embedded in an attachment, it triggers an alert. The tool can detect a social security number and various other forms of patient identity. Emails are then automatically generated and sent.Most of the work that seems not to work offline works perfectly with Microsoft Office 2013, like converting a Word document to a PDF file.The cloud service and Skype are the most valuable features.It is very easy to deploy.Cloud-based management is valuable and software deployment is positive.

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Slack is a powerpack bundle of features that help small or large organizations to handle teams and their tasks.Its intuitive design makes it easy to use and understand, hence we do not have a need to spend much on educating our teams.Overall, it is a good idea as it works better than most solutions out there.It has definitively made an improvement on our productivity. Information does not got lost in hundreds of less important messages.Its integration with different apps is a great feature.

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Cons
Integration between Outlook calendar and Google Calendar would be a good improvement since many of our team use Android phones and personal Gmail accounts as their main calendar application.Using Visual Basic, I have had a lot of trouble with relative paths when programming for Excel, and sometimes it is very difficult to debug programs.There are several additional features we would like to see, such as advanced features of SAN protection in Office 365. The main thing is the SAN protection; we would like to see a lot of advanced features added because we had a lot of spam attacks.Improvements can be made to the products generic offering. It's not customized for health care. It doesn't understand the meaning of health care related concepts. Providing a greater degree of industry specificity would make the tool much more unique and valuable.The feature to convert PDF file to a Word document needs improvement as well as the feature to save the file automatically when typing, without using the save command.Using Office 365 is not that flexible on some mobile devices, like Android.Their support is so terrible and unusable except during dire emergencies.There are some complexities to the initial setup if you use some of the more advanced features.

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I would like to see the social sharing of blogs, announcements, or other news directly from the message corner.The only area of concern that I have is with the inability to preview received documents without having to download them first.The mobile app needs improvement. It consistently misses notifications.Notifications are not as good as they could be (especially for mobile).Slack could add additional and better integrations.

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Pricing and Cost Advice
The pricing is not really high, but one can get the software with the license key for free.The pricing is good for all the features that we receive, e.g., Skype for Business.​The pricing/licensing is easy to manage.Good reporting and good value subscriptions for international calls.Licensing, billing, and accounting are available from the management interface.

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Ranking
Views
5,675
Comparisons
4,688
Reviews
11
Average Words per Review
307
Avg. Rating
8.0
Views
7,024
Comparisons
5,541
Reviews
9
Average Words per Review
206
Avg. Rating
8.7
Top Comparisons
Compared 26% of the time.
Compared 12% of the time.
Compared 10% of the time.
Compared 28% of the time.
Compared 14% of the time.
Compared 10% of the time.
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
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Microsoft
Slack
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.

Offer
Learn more about Office 365
Learn more about Slack
Sample Customers
Information Not Available
Strava, The New York Times, Spotify, Blue Bottle Coffee Company, Eventbrite, Box, Circa, Stripe
Top Industries
REVIEWERS
Manufacturing Company25%
Financial Services Firm17%
Non Tech Company8%
Mining And Metals Company8%
VISITORS READING REVIEWS
Software R&D Company24%
Government11%
Comms Service Provider9%
Financial Services Firm8%
REVIEWERS
Marketing Services Firm36%
Financial Services Firm14%
Non Tech Company7%
Media Company7%
VISITORS READING REVIEWS
Comms Service Provider16%
Software R&D Company14%
Financial Services Firm10%
Healthcare Company10%
Find out what your peers are saying about Office 365 vs. Slack and other solutions. Updated: November 2019.
378,124 professionals have used our research since 2012.
We monitor all Enterprise Social Software reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.
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