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Slack Reviews & Insights

Score9.1 out of 10

9,074 Reviews and Ratings

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Based on 24,586 HG Insights installations.

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Community Insights for Slack

Synthesised from 64 verified reviews.


Synthesised from 64 reviews | Last Published May 26, 2026


Slack functions as a primary internal communication platform, enabling seamless interaction and collaboration for teams, particularly in remote and distributed environments. In TrustRadius reviews, users leverage it for direct messages, group channels, and organizing discussions by topic. Its robust integration capabilities are a key strength, with 39% of reviewers highlighting their value for streamlining workflows and centralizing notifications.

While enhancing communication speed and efficiency, reviewers frequently note challenges with search functionality, with 19% citing difficulties finding older messages. Thread management can also be clunky, and notification systems are often overwhelming. Despite these points, the platform generally delivers a positive ROI by boosting productivity and reducing email clutter, though some raise concerns about subscription costs.


  • Seamless integration with other applications for centralized workflows
  • Effective audio and video communication via Huddles for real-time interaction
  • Structured organization of discussions through dedicated channels
  • Improved communication speed and overall efficiency
  • Significant reduction in internal email clutter
  • Challenges with search functionality for older messages and files
  • Difficulty with thread management leading to missed messages
  • Overwhelming and insufficiently configurable notification systems
  • Occasional audio problems and instability with Huddles
  • Concerns regarding subscription costs and license management
What other products like Slack have you used or evaluated?

From 64 reviews | Last Published May 26, 2026

Reviewers frequently cited a range of communication and collaboration platforms used alongside or as alternatives to Slack. Microsoft Teams emerged as the most commonly mentioned alternative, noted by 25% of reviewers. This suggests its significant market presence, often as part of the broader Microsoft 365 ecosystem. Google Chat was also a notable mention, cited by 16% of the review sample, indicating its role within organizations that may leverage Google Workspace for their productivity needs. Discord, a platform often associated with community building and less formal communication, was mentioned by 9% of reviewers. A smaller segment of the sample, 3% of reviewers, also identified WhatsApp Business, suggesting its use for specific communication requirements, potentially external or customer-facing interactions. The prevalence of these tools highlights a diverse landscape of communication solutions that organizations consider, often driven by existing software ecosystems or specific functional requirements.

WhatsApp Business

Microsoft Teams, WhatsApp Business and Instagram for Business

Microsoft Teams

Microsoft Teams

Google Chat

Google Chat and Microsoft Teams

What positive or negative impact (i.e. Return on Investment or ROI) has Slack had on your overall business objectives?

From 64 reviews | Last Published May 26, 2026

Slack generally demonstrates a positive return on investment for business objectives, primarily by enhancing communication and collaboration. A quarter of reviewers (25%) highlighted significant improvements in communication speed and overall efficiency, noting faster responses and streamlined internal dialogues. This enhanced communication, cited by 20% of reviewers, directly contributes to quicker decision-making and reduced project delays. Furthermore, 17% of the reviews indicate that Slack positively impacts productivity and generates time savings, largely by reducing email overload and facilitating quicker information retrieval. The platform also fosters better team and external partner collaboration, an aspect mentioned by 13% of users, which is particularly beneficial for distributed teams. However, concerns regarding cost and licensing emerged, with 8% of reviewers citing subscription expenses and challenges with license management as negative impacts on ROI. Some also noted potential downsides like notification overload. Despite these cost considerations, the prevailing sentiment points to Slack's strong value proposition in operational efficiency and team connectivity.

Communication Speed and Efficiency

it has been positive in terms of great communication across the board.

Notification Overload

Overwhelming notifications can cause for inefficiency

Team Productivity

Improved team productivity

Besides Slack, what other software do you regularly use? How likely would you be to recommend it to a friend or colleague?

From 64 reviews | Last Published May 26, 2026

Reviewers frequently utilize a diverse array of software alongside Slack, with collaboration and project management tools being particularly prominent. Microsoft Teams is the most cited alternative, mentioned by 11% of reviewers, often appearing in conjunction with other communication platforms or project tracking systems. Google's ecosystem also features significantly, with Google Workspace and Google Chat each noted by 6% of respondents, indicating their role in integrated productivity and communication suites. Beyond general collaboration, specialized tools for development and project tracking are also commonly used. Atlassian Jira, a project management solution, and GitHub, a development platform, were each identified by 5% of reviewers, highlighting their essential functions in technical and team-based workflows. The variety of tools reflects a broad spectrum of operational needs across different organizations.

Cloud & Infrastructure

Amazon Web Services

Data & Analytics

Google Analytics

ADP

ADP SmartCompliance, ADP Workforce Now

Describe how you use Slack in your organization. What are the business problems the product addresses and what is the scope of your use case?

From 64 reviews | Last Published May 26, 2026

Slack serves as the primary internal communication platform for organizations, enabling seamless interaction and collaboration across teams and departments. This is highlighted by 95% of reviewers, who frequently use it for direct messages, group channels, and sharing updates. The platform's ability to organize discussions through dedicated channels is highly valued, with 25% of reviewers noting its effectiveness in keeping information tidy and accessible by topic or project. Furthermore, Slack significantly supports remote work environments, as indicated by 22% of reviewers, by facilitating constant connection and collaboration among distributed teams and across different time zones. Its robust integration capabilities, mentioned by 13% of reviewers, allow for streamlined workflows and notifications from other essential tools, reducing context switching. A notable benefit is also its role in reducing email clutter, a point raised by 9% of reviewers, by providing a faster, more efficient alternative for internal communications and quick decision-making.

Collaboration and Organization

We can also have threads to keep our talks organized and find everything we want to retrieve later on

Client Communication

can connect with clients using the External Connections, and have one place where we all go for updates and to chat within and across teams.

Quick Communication

It also enables quick communication, with users able to ask questions and receive responses in seconds.

Please provide some detailed examples of areas where Slack has room for improvement.

From 64 reviews | Last Published May 26, 2026

Reviewers frequently identify several areas where Slack could enhance its functionality and user experience, with search capabilities and thread management being the most commonly cited. Approximately 19% of reviewers expressed challenges with the search function, particularly regarding finding older messages and files, and filtering results effectively in large workspaces. While some acknowledge its extensiveness, others find the results confusing or limited, especially on the free plan. Another significant area for improvement, noted by 11% of reviewers, is thread management, which many find can lead to messages being missed or difficult to follow due to clunky or messy organization. Furthermore, notification systems present a common pain point, with 8% of reviewers reporting issues with overwhelming numbers of alerts and a lack of configurable options. This is compounded by additional concerns from 6% of reviewers about the general management of notifications, including messages getting buried. Finally, the Huddles feature, intended for audio and video communication, also received feedback for improvement, with 6% of reviewers citing issues such as audio problems, incorrect microphone selection, and general call instability. These observations suggest opportunities for refinement across core communication, information retrieval, and real-time interaction features.

Workflow/Automation Features

Slack workflows not having if and else condition or for loop like Salesforce flows

Call Quality

Calls lagging

Read Receipts

when a message posted in channel , we can't see whether the person the read the messages or not.

Please provide some detailed examples of things that Slack does particularly well.

From 64 reviews | Last Published May 26, 2026

Reviewers frequently highlight Slack's robust capabilities in facilitating team communication and collaboration, with a strong emphasis on its integration features. The ability to seamlessly connect with other applications was the most frequently cited strength, mentioned by 39% of reviewers. This functionality is valued for reducing context switching and centralizing notifications from various tools. Another significant positive aspect is the platform's audio and video communication features, specifically "Huddles" and quick calls, which 31% of reviewers praised for their ease of use and effectiveness in fostering real-time interaction. The structured organization provided by channels is also a key differentiator, with 23% of reviewers noting its benefit in keeping discussions and projects well-ordered. Furthermore, the use of threads for organizing conversations within channels is appreciated by 19% of the review sample, helping to maintain clarity and ensure important updates are not missed. These core features collectively contribute to Slack's perceived effectiveness as a comprehensive communication hub.

Organization of conversations

organisation of conversations

User Interface

Slack being user friendly and able to integrate easily with other platforms and apps.

Workflows

Slack workflows which helps to automate day to day or weekly tasks

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