25 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener'>trScore algorithm: Learn more.</a>Score 8.5 out of 100
Based on 25 reviews and ratings
Slack
<a href='https://www.trustradius.com/static/about-trustradius-scoring#question3' target='_blank' rel='nofollow noopener'>Customer Verified: Read more.</a>
Top Rated
5871 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener'>trScore algorithm: Learn more.</a>Score 9 out of 100
Based on 5871 reviews and ratings
Feature Set Ratings
- Nextcloud ranks higher in 1 feature set: File Sharing & Management
File Sharing & Management
9.0
Nextcloud
90%
8.5
Slack
85%
Nextcloud ranks higher in 6/9 features
Nextcloud ranks higher in 6/9 features
Versioning
9.4
94%
8 Ratings
8.6
86%
99 Ratings
Video files
8.8
88%
9 Ratings
8.5
85%
200 Ratings
Audio files
9.3
93%
8 Ratings
8.7
87%
196 Ratings
Document collaboration
9.3
93%
9 Ratings
8.2
82%
161 Ratings
Access control
9.5
95%
10 Ratings
7.9
79%
142 Ratings
File search
8.5
85%
9 Ratings
N/A
0 Ratings
Device sync
8.5
85%
10 Ratings
8.8
88%
157 Ratings
Advanced security features
N/A
0 Ratings
8.2
82%
121 Ratings
Integrates with Google Drive
N/A
0 Ratings
8.9
89%
156 Ratings
Cloud Storage Security & Administration
9.2
Nextcloud
92%
Slack
Feature Set Not Supported
N/A
Nextcloud ranks higher in 3/3 features
Nextcloud ranks higher in 3/3 features
User and role management
9.2
92%
10 Ratings
N/A
0 Ratings
File organization
9.4
94%
9 Ratings
N/A
0 Ratings
Device management
8.9
89%
8 Ratings
N/A
0 Ratings
Cloud Storage Platform
9.1
Nextcloud
91%
Slack
Feature Set Not Supported
N/A
Nextcloud ranks higher in 3/3 features
Nextcloud ranks higher in 3/3 features
Performance
8.8
88%
9 Ratings
N/A
0 Ratings
Reliability
9.1
91%
9 Ratings
N/A
0 Ratings
Storage Reports
9.4
94%
8 Ratings
N/A
0 Ratings
Project Management
Nextcloud
Feature Set Not Supported
N/A
8.1
Slack
81%
Slack ranks higher in 7/7 features
Slack ranks higher in 7/7 features
Task Management
N/A
0 Ratings
7.7
77%
142 Ratings
Gantt Charts
N/A
0 Ratings
8.0
80%
51 Ratings
Scheduling
N/A
0 Ratings
7.5
75%
107 Ratings
Workflow Automation
N/A
0 Ratings
8.1
81%
116 Ratings
Mobile Access
N/A
0 Ratings
9.2
92%
234 Ratings
Search
N/A
0 Ratings
8.4
84%
234 Ratings
Visual planning tools
N/A
0 Ratings
7.9
79%
75 Ratings
Communication
Nextcloud
Feature Set Not Supported
N/A
8.5
Slack
85%
Slack ranks higher in 8/8 features
Slack ranks higher in 8/8 features
Chat
N/A
0 Ratings
9.7
97%
252 Ratings
Notifications
N/A
0 Ratings
9.1
91%
249 Ratings
Discussions
N/A
0 Ratings
9.2
92%
243 Ratings
Surveys
N/A
0 Ratings
7.9
79%
139 Ratings
Internal knowledgebase
N/A
0 Ratings
7.4
74%
139 Ratings
Integrates with GoToMeeting
N/A
0 Ratings
8.0
80%
75 Ratings
Integrates with Gmail and Google Hangouts
N/A
0 Ratings
8.7
87%
131 Ratings
Integrates with Outlook
N/A
0 Ratings
8.3
83%
87 Ratings
Attribute Ratings
- Nextcloud is rated higher in 1 area: Support Rating
- Slack is rated higher in 1 area: Likelihood to Recommend
Likelihood to Recommend
8.8
Nextcloud
88%
10 Ratings
9.2
Slack
92%
252 Ratings
Likelihood to Renew
Nextcloud
N/A
0 Ratings
9.2
Slack
92%
15 Ratings
Usability
Nextcloud
N/A
0 Ratings
9.1
Slack
91%
28 Ratings
Support Rating
9.0
Nextcloud
90%
1 Rating
7.7
Slack
77%
122 Ratings
Implementation Rating
Nextcloud
N/A
0 Ratings
10.0
Slack
100%
4 Ratings
Likelihood to Recommend
Nextcloud
While searching for tools to satisfy a quickly scaling online startup, we found Nextcloud is well suited for today's remote collaborative team. Nextcloud has just the right toolset for a collaborative workspace including video, chat, many file formats accepted, and intuitive user interface. Comparatively other popular tools like Trello were distracting with more features than functionality. Working with Nextcloud is much like having a workspace with all your content and tools available anywhere on any device, without the ads, distractions, and irrelevant functionality. We will continue to utilize Nextcloud as a remote workspace for evolving and scaling teams.
Purple Squirrel Media
Purple Squirrel MediaBroadcast Media, 1-10 employees
Slack
I can be on a phone call and still answer questions without being interrupted. This helps with increasing the opportunities for us to serve our clients. Instead of having to update my status because of a meeting, Outlook is connected. Saves me a few steps of changing status or calls getting transferred while I am in a meeting.

Verified User
Employee in Sales
Accounting Company, 11-50 employeesPros
Nextcloud
- Very intuitive interface.
- Superb synchronization agent.
- Integration with AD/LDAP, external file sources, and other tools is top-notch.
- Wide variety of "apps" (plugins).
Director Of Information Technology and HIPAA Privacy Officer
Continuum of CareHospital & Health Care, 501-1000 employees
Slack
- Excellent in terms of tracking new and upcoming orders for business.
- Create various channels to manage your team and departments.
- The User Interface (UI) is friendly.
- Portable and to use. They both have software, website and application.
- Excellent in terms of fast communication with employer, team and co-workers.
Graphics and Layout Design Manager
Contractor AdsMarketing & Advertising, 1-10 employees
Cons
Nextcloud
- Slow in comparison to other solutions
- May be complex for the start since there are lots of apps and features
- May be not focusing on core topics

Verified User
C-Level Executive in Product Management
Information Technology & Services Company, 11-50 employeesSlack
- Reflecting the availability status of an individual based off of integration with other products e.g., Microsoft Outlook. Currently, it does indicate that there is a meeting on Outlook but syncing the status takes it a step further.
- Search feature can be made better with the ability to search based on a certain criteria like a Person etc. This feature is not as mature as it can be.

Verified User
Employee in Information Technology
Financial Services Company, 501-1000 employeesPricing Details
Nextcloud
General
Free Trial
Yes
Free/Freemium Version
Yes
Premium Consulting/Integration Services
Yes
Entry-level set up fee?
Optional
Starting Price
—Nextcloud Editions & Modules
—
Additional Pricing Details
—Slack
General
Free Trial
—Free/Freemium Version
—Premium Consulting/Integration Services
—Entry-level set up fee?
No
Starting Price
$8 Per User Per Month
Slack Editions & Modules
Edition
Standard | $8.001 |
---|---|
Plus | $15.001 |
- Per User Per Month
Additional Pricing Details
—Likelihood to Renew
Nextcloud
No score
No answers yet
No answers on this topic
Slack
Slack 9.2
Based on 15 answers
Slack works incredibly well and allows our whole remote-first company to work together from all around the World. The flexibility, ease of use and scalability of the solution means that we can continue to grow and make use of the team with a minimum of effort. I can see no obvious reasons why we would migrate to a different tool other than perhaps cost, but whatever savings would disappear in migration/setup time and the initial productivity loss.

Verified User
Contributor in Product Management
Computer Software Company, 1001-5000 employeesUsability
Nextcloud
No score
No answers yet
No answers on this topic
Slack
Slack 9.1
Based on 28 answers
Everything just works. I think the navigation and usability is quite intuitive. I have never had to look up any information or google how to use a feature of Slack (both in the desktop form and on the mobile app). I've never heard any complaints from our other employees either. I have been asked to remind people how to set up reminders, ironically. Although that itself is really simple too (you type "/remind" and then the reminder details).
Developer
By the Book, Inc (Software For Churches/NonProfits)Religious Institutions, 1-10 employees
Support Rating
Nextcloud
Nextcloud 9.0
Based on 1 answer
I never needed support as everything always worked fine. The documentation on Nextcloud website is extensive and clear. The community is very active on the forum and should support you if you don't already find what you are looking for.
CEO (Chief Executive Officer)
josephcosta.euInternet, 1-10 employees
Slack
Slack 7.7
Based on 122 answers
I've never had to contact support for Slack which is a great testament to its ease and use. Adding people outside of the organization takes a little getting used to, but ultimately allows for greater collaboration between FTE and contractors. There is no clear alternative to this software, so it's the best we can do for now.

Verified User
Contributor in Other
Food & Beverages Company, 201-500 employeesImplementation Rating
Nextcloud
No score
No answers yet
No answers on this topic
Slack
Slack 10.0
Based on 4 answers
It always helps if you communicate to everyone in the organization how important it is to drop whatever other chat tools they are using and jump quickly to Slack. They will all fall in love with it.

Verified User
Director in Sales
Internet Company, 51-200 employeesAlternatives Considered
Nextcloud
Nextcloud stacks up pretty well against Mattermost and ownCloud. I really appreciate the fact that Nextcloud seems to integrate with other products pretty seamlessly and allows for extensibility that our product team can extend and improve functionality without a tremendous ramp-up time. We once used ownCloud in previous years, but they went the wrong way, and have found Nextcloud to be the right direction over time.

Verified User
Engineer in Engineering
Internet Company, 1-10 employeesSlack
Slack has expanded functions and much better connection. Slack is heavily customizable whereas 3CX and Google Chat are standard across the board. To my knowledge 3CX and Google Chat do not have the thread function, expanded reactions function, group channels vs group messages, profile photos/titles for users, or customized viewing preferences

Verified User
Employee in Other
Staffing & Recruiting Company, 501-1000 employeesReturn on Investment
Nextcloud
- Reduced costs: Cheaper than hosted alternatives if you need a lot of space.
- Professional impression on partners and clients (branding, security).
CEO
Better Europe Public AffairsProfessional Training & Coaching, 1-10 employees
Slack
- Slack has significantly improved team collaboration and communication, and as a result, a large number of users are now able to communicate more effectively.
- It's easier to handle remote work with Slack because it's so simple to do so. On small projects, better communication and collaboration are essential.
- When it comes to business environments, Slack is the best. Saving time by automating routine tasks is one benefit of the technology's existence.
Marketing Product Management
ClopsmithInformation Technology & Services, 11-50 employees