Slack vs Teamwork.com: Complete Comparison (2026)
An in-depth comparison of Slack and Teamwork.com 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.
Teamwork.com
6.8/10
Client work management platform for agencies and professional services teams, combining projects, time tracking, budgets, resourcing and invoicing.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 7.1/10 | 6.8/10 |
| Analytics | 3/10 | 8/10 |
| Cost | 5/10 | 6/10 |
| Customization | 7/10 | 7/10 |
| Ease of Use | 7/10 | 6/10 |
| Integration | 10/10 | 7/10 |
| Scalability | 9/10 | 7/10 |
| Security | 9/10 | 7/10 |
| Support | 6/10 | 8/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | €8/user/mo Pro | $10/user/mo Basics |
| Estimated cost for 10 users | Free Free | $250/mo Accelerate |
| Features | ||
| Gantt charts | ||
| Time tracking | ||
| App integrations | ||
| Client collaboration | ||
| Collaboration tools | ||
| Kanban boards | ||
| Spreadsheet interface | ||
| Task lists | ||
| Task management | ||
| Workflow automation | ||
| Docs | Not listed | |
| File sharing | Not listed | |
| Reporting | Not listed | |
| Scheduling | Not listed | |
| Team messaging | Not listed | |
Slack vs Teamwork.com cost by team size
| Team size | Slack | Teamwork.com |
|---|---|---|
| 1 user | FreeFree | FreeFree |
| 5 users | FreeFree | FreeFree |
| 10 users | FreeFree | $250/moAccelerate |
| 25 users | FreeFree | $625/moAccelerate |
| 50 users | FreeFree | $1,250/moAccelerate |
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 Integration score (10/10 vs 7/10)
- Higher Scalability score (9/10 vs 7/10)
- Better fit for enterprise (9/10 vs 6/10)
- Better fit for startups (8/10 vs 5/10)
Why choose Teamwork.com
- Higher Analytics score (8/10 vs 3/10)
- Higher Support score (8/10 vs 6/10)
- Better fit for agencies (9/10 vs 7/10)
- Includes Gantt charts, which Slack lacks
- 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.
Teamwork.com
Pros
- Client users with limited permissions and proofing let agencies share work and get approvals inside the tool.
- Time tracking, budgets, retainers and invoicing are part of the same platform, so there is no separate billing app.
- Reviewers praise its reporting on profitability, tracked time and team workload.
- More than 150 integrations, including Slack, Microsoft Office and an MCP server for AI assistants.
- Every plan includes SOC 2 compliance, two-factor authentication and a choice of US or EU hosting.
Cons
- Reviewers say the wide feature set means a long onboarding period.
- It is less suited to teams that only run internal projects.
- Optimize and Enterprise pricing is not public, and monthly billing costs about 29 percent more than annual.
- CRM and ERP integrations such as HubSpot, Salesforce and NetSuite are only on higher tiers.
- Some users report glitches, including task filtering bugs in the iOS app.
Not sold on either?
Frequently Asked Questions
Slack scores higher on our Project Management criteria: 7.1/10 against 6.8/10 for Teamwork.com. The largest gap is in Analytics: 3/10 for Slack and 8/10 for Teamwork.com.
Yes, both Slack and Teamwork.com have a free plan.
Slack is the better fit for enterprise: we rate it 9/10 for them, against 6/10 for Teamwork.com.
Teamwork.com has Gantt charts and Time tracking, which Slack lacks.
