Slack vs Workast: Complete Comparison (2026)
An in-depth comparison of Slack and Workast to help you choose the right tool for your business.
Last updated: November 2026
Slack
7.1/10
Slack is a channel-based messaging platform from Salesforce, with Lists, canvases, huddles and Workflow Builder for team coordination and light task tracking.
Workast
6.1/10
Workast is a task and project management app that runs inside Slack and Webex, built for teams that want to assign and track work without leaving chat.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 7.1/10 | 6.1/10 |
| Cost | 5/10 | 8/10 |
| Ease of Use | 7/10 | 8/10 |
| Analytics | 3/10 | 4/10 |
| Customization | 7/10 | 5/10 |
| Scalability | 9/10 | 4/10 |
| Support | 6/10 | 6/10 |
| Integration | 10/10 | 6/10 |
| Security | 9/10 | 5/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | €8/user/mo Pro | $5/user/mo Standard |
| Estimated cost for 10 users | Free Free | Free Essential |
| Features | ||
| Time tracking | ||
| App integrations | ||
| Client collaboration | ||
| Collaboration tools | ||
| File sharing | ||
| Kanban boards | ||
| Task lists | ||
| Task management | ||
| Workflow automation | ||
| Docs | Not listed | |
| Gantt charts | Not listed | |
| Reporting | Not listed | |
| Scheduling | Not listed | |
| Spreadsheet interface | Not listed | |
| Team messaging | Not listed | |
| Timeline view | Not listed | |
Slack vs Workast cost by team size
| Team size | Slack | Workast |
|---|---|---|
| 1 user | FreeFree | FreeEssential |
| 5 users | FreeFree | FreeEssential |
| 10 users | FreeFree | FreeEssential |
| 25 users | FreeFree | FreeEssential |
| 50 users | FreeFree | FreeEssential |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose Slack
- Higher Scalability score (9/10 vs 4/10)
- Higher Integration score (10/10 vs 6/10)
- Better fit for enterprise (9/10 vs 4/10)
- Better fit for mid-market (8/10 vs 6/10)
Why choose Workast
- Higher Cost score (8/10 vs 5/10)
- Higher Ease of Use score (8/10 vs 7/10)
- Includes Time tracking, which Slack lacks
Pros & Cons
Slack
Pros
- The app ecosystem is very large, and tools such as ClickUp, Notion, HubSpot and Clockify can post updates into channels.
- Slack Connect lets teams work in shared channels with up to 250 outside organizations on paid plans.
- Compliance coverage is broad, including ISO 27001, SOC 2 Type II, FedRAMP Moderate and HIPAA configurability.
- Lists add table and board layouts with assignees, due dates and subtasks, without leaving chat.
- Workflow Builder automates routine requests and approvals without code.
Cons
- There are no native Gantt charts, dependencies, time tracking or portfolio reporting, so Slack doesn't replace a dedicated PM tool.
- Frequent notifications and busy channels can interrupt focus, a common complaint in reviews.
- The free plan keeps only 90 days of message history and allows 10 apps.
- Advanced AI features require Business+ or above, and per-user costs add up as teams grow.
- Reviewers report that finding older messages through search can be difficult.
Workast
Pros
- Tasks can be created and assigned straight from Slack messages, which reviewers say makes adoption easy
- Free Essential plan supports unlimited users for Slack-only task tracking
- Team base pricing of 39 or 49 USD for 8 users is cheap compared with per-seat rivals
- Supports multiple assignees per task, which Asana does not
- Scheduled custom reports and reminders are delivered into Slack
Cons
- Little value for teams that do not use Slack or Webex
- No Gantt charts, docs or wiki features
- Some reviewers find task editing, assignment and history features underdeveloped
- One reviewer felt it was pricier and less user-friendly than other task tools
- Small vendor with a limited number of public reviews
Not sold on either?
Frequently Asked Questions
Slack scores higher on our Project Management criteria: 7.1/10 against 6.1/10 for Workast. The largest gap is in Scalability: 9/10 for Slack and 4/10 for Workast.
Yes, both Slack and Workast have a free plan.
Slack is the better fit for enterprise: we rate it 9/10 for them, against 4/10 for Workast.
Workast has Time tracking, which Slack lacks.
