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Slack Reviews & Insights

Score9.1 out of 10

9,074 Reviews and Ratings

Top industries

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

From 64 reviews | Last Published May 26, 2026

Internal Communication

61 mentions

Positive reviews by 100% of reviewers


Why it matters:

  • Reviewers overwhelmingly identify Slack as their organization's main tool for internal communication, praising its ability to foster collaboration and keep teams connected. It is used for a wide range of interactions, from one-on-one chats and quick updates to managing workflows and sharing critical company-wide information, particularly benefiting remote and global teams.

Slack is a very easy and useful app, using Slack we can chat one to one and we can create private and public channels , helps teams communicate and collaborate on projects huddle system was good we can work together easy way to search the messages, it is very useful for IT industries now a days. Mast of them are love to use Slack now an days

Microsoft Teams

16 mentions

Why it matters:

  • Microsoft Teams was the most frequently cited alternative or complementary product to Slack, with 25% of reviewers mentioning it. Its widespread use often stems from its integration within the Microsoft 365 suite, making it a natural choice for many businesses already invested in Microsoft's ecosystem. Reviewers often mentioned it alongside other major communication tools, indicating its status as a primary competitor in the enterprise collaboration space.

Microsoft Teams

Communication Speed and Efficiency

16 mentions

Positive reviews by 100% of reviewers


Why it matters:

  • Reviewers frequently report that Slack significantly accelerates internal communication, which in turn speeds up decision-making processes and reduces project delays. Many users appreciate how the platform streamlines conversations, making it easier to manage and track discussions across teams. This improvement in communication flow is seen as a direct contributor to overall operational efficiency, with 25% of reviewers highlighting this benefit.

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

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