Slack Review: Is It The Right Business Instant Messaging Software For Your Team?
Best for SMB teams · Mid-market · Enterprise
Free Trial & Free Plan Available
GDPR
SOC 2
HIPAA
ISO 27001Starts from $2.67 / Month, also offers free forever plan
Overview
Pricing
Features
Buyer feedback
Alternatives
Customers
Media
Security & Compliance
Support
FAQ
Blogs
What is Slack?
Slack is the only unified communication platform for chatting, sharing, and collaborating. Whether in one-on-one conversations or a large group, Slack's threaded conversations keep everyone on the same page. No more email threads about a project that went sideways. No more meeting minutes trying to reconstruct what happened in the meeting.
Pricing
Starts from $2.67 / Month
Free Trial available
Best For
Suited for small teams, SMBs, and enterprise
Security & Compliance
SOC 2GDPRHIPAAISO 27001SSO & MFA supported
Data residency:Global
Platform
Web + mobile app (iOS & Android)
Installed - Windows
Installed - Mac
Slack Software Demo
Slack was reviewed internally using user feedback, in-house testing, and market research to assess its performance, reliability, and user experience. Learn how we review products and our evaluation process.
Who should consider Slack
- Use cases
- Remote team collaboration, Project communication, Customer support coordination
- Team types
- Product development teams, Customer service teams
- Company size
- 1-50 employees, 500+ employees
- Workflow style
- Simple and streamlined
- Setup complexity
- Low
Why teams choose Slack
Unified platform for messaging and collaboration
Threaded conversations that reduce email overload
Supports both one-on-one and large group communication
Is Slack right for you?
Best for streamlined team communication and collaboration across varied company sizes.
Choose Slack if
- You need a unified platform for both one-on-one and group messaging.
- Your team benefits from threaded conversations to reduce email overload.
- You want a simple, low-complexity setup for remote or cross-functional teams.
Consider alternatives if
- Your organization requires specialized industry compliance features not supported by Slack.
- Your team prefers email-centric workflows over instant messaging platforms.
What buyers should know before shortlisting Slack
Slack is a comprehensive communication platform that enhances collaboration through its threaded conversations and integration capabilities. It's ideal for teams looking to streamline their communication and project management.
Slack pros and cons
- Slack pros
Unified platform for messaging and collaboration
Threaded conversations that reduce email overload
Supports both one-on-one and large group communication
- Slack cons
Pricing details are not fully transparent and may require sales contact
May lack advanced project management features
Ready to try it?
Get started with Slack
Start your free trial — no credit card required.
Still comparing?
See how it stacks up
Compare Slack side-by-side with top Business Instant Messaging Software alternatives.
What is the pricing of Slack?
Slack Pricing Plans
Free
Access to 10,000 of your team’s most recent messages
10 integrations with other apps like Google Drive, Office 365 and many more
1:1 voice and video calls between teammates
Message history - 10k of your team’s most recent messages
Relevant people, channels and files in search results
Show more +
Pro
$2.67
/Month
All the benefits of Free and:
The full context of your organization’s message history at your fingertips
Timely info and actions in one place with unlimited integrations
Face-to-face communication with group voice and video calls of up to 15 teammates
Secure collaboration with outside organizations or guests from within Slack
Show more +
Business
$5
/Month
Advanced identity management through SAML-based SSO and real-time Active Directory sync with OneLogin, Okta, and Ping Identity
Compliance requirements met with data exports for all messages
Around-the-clock teamwork and assistance with 99.99% guaranteed uptime and 24/7 support with a four-hour response time
Message history - Unlimited
Relevant people, channels, and files in search results
Show more +
Enterprise Grid
Peace of mind with enterprise-grade security and compliance, such as HIPAA support and the Enterprise Key Management add-on
Large scale collaboration and alignment with support for up to 500,000 users
Streamlined administration with centralized controls and customizable policies
Tailored support with a designated account and customer success team
Message history - Unlimited
Show more +
Weighing your options?
Not sure if Slack fits your budget?
Slack reviews and ratings
Buyer sentiment
Overall, users appreciate Slack for its ease of communication and collaboration but note challenges with pricing and information overload.
What buyers like
- Ease of use
- Effective team communication
- Integration capabilities
Common complaints
- Pricing complexity
- Notification overload
Are you using Slack?
What users are saying
HZ
H. Zambrano
01/05/26
good platform to stay in touch
it is nice platfrom that allows me to stay in touch with my coallegues...it doesnt glitch, works well, and its design is so simple , yet efficient
AB
Aled Brown
12/10/25
Easy to use
Not complex, easy use for internal messaging
VB
Vasily Bas
11/24/25
good for team communication
good for team communication.can be slow at times, but overall very intuitive and nice, our team loves it!
L
LYN
11/19/25
Slack has been part of our setup for…
Slack has been part of our setup for months and it's been smooth. I like that I can catch up on missed messages quickly and jump to conversations ...
Read more
SS
Smart Spark Ai
10/21/25
I am using slack for a while now
I am using slack for a while now, and it is working and free since I am indie maker thanks team
BB
Biplav Balami
10/11/25
always in touch here
slack is an amazing platform through which I remain in contact with my colleagues .the platform is fast, I neber had any glitches here over the period ...
Read more
- See if Slack fits your business
- Real pricing — no sales pressure
- A demo or quick answers, your call
Step 1 of 4
How big is your team?
We tailor recommendations to companies your size.
What are the features of Slack?
An app or software sends out alerts, which are actionable and content-rich push notifications. These alerts can be for various reasons, incl…
The act of conversing, communicating, and/or exchanging messages through the internet is known as chatting. It entails two or more persons i…
Collaboration has received a lot of attention in the marketing world recently. It's taking off in a big way but still has many questions sur…
File sharing is defined as the act of sharing or providing access to digital information or resources such as documents, multimedia (audio/v…
Real-time chat is a software feature that allows users to communicate with each other instantly. It enables real-time messaging and conversa…
Third-party integration refers to the addition of relevant external data to an existing project via various APIs. Because of third-party API…
Video conferencing (teleconferencing) is an internet technology that allows people in various parts of the world to hold face-to-face meetin…
Workflow automation is a key feature in software that streamlines and automates repetitive tasks and processes, improving efficiency, accura…
Slack security and data handling
Key compliance certifications and security features for IT and security teams evaluating Slack.
Certifications
Security features
Developer & data
Alternatives to Slack
Slack Customers
Slack Support Options
Frequently Asked Questions About Slack
Common questions buyers ask before choosing Slack.
Slack is a Business Instant Messaging Software. Slack offers Chat (Messaging), Real-time Chat, File Sharing, Collaboration, Video Conferencing and many more functionalities.
Slack is a strong fit if: You need a unified platform for both one-on-one and group messaging.; Your team benefits from threaded conversations to reduce email overload.. Consider alternatives if: Your organization requires specialized industry compliance features not supported by Slack.; Your team prefers email-centric workflows over instant messaging platforms..
Buyers commonly note the following limitations of Slack: Pricing details are not fully transparent and may require sales contact; May lack advanced project management features; Can become noisy without proper channel management.
Some top alternatives to Slack includes Microsoft Teams, Glip, Google Chat, ChatWork and Teamwork Chat.
Slack offers Free Trial, Freemium, Subscription, Quotation Based pricing models
The starting price of Slack is $2.67/Month
Ready to try it?
Get started with Slack
Start your free trial — no credit card required.
About the reviewer
Rajat Gupta is the founder of Spotsaas. Over the past two years, he has reviewed 2,000+ tools across CRM, HR, AI, and finance — applying hands-on product research and a background in commerce and the CFA program to evaluate software through a business and ROI lens. His goal: help teams make software decisions they won't regret.
Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
