Avaza vs Slack: Complete Comparison (2026)
An in-depth comparison of Avaza and Slack to help you choose the right tool for your business.
Last updated: November 2026
Avaza
6.5/10
All-in-one work management platform combining projects, timesheets, resource scheduling, expenses, quotes and invoicing for client-service businesses such as agencies and consultancies.
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.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.5/10 | 7.1/10 |
| Cost | 8/10 | 5/10 |
| Analytics | 7/10 | 3/10 |
| Customization | 5/10 | 7/10 |
| Ease of Use | 8/10 | 7/10 |
| Integration | 6/10 | 10/10 |
| Scalability | 5/10 | 9/10 |
| Security | 5/10 | 9/10 |
| Support | 7/10 | 6/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | $12/mo Startup | €8/user/mo Pro |
| Estimated cost for 10 users | $12/mo Startup | Free Free |
| Features | ||
| Gantt charts | ||
| Time tracking | ||
| App integrations | ||
| Client collaboration | ||
| Collaboration tools | ||
| File sharing | ||
| Kanban boards | ||
| Task lists | ||
| Task management | ||
| Team messaging | ||
| Dashboards | Not listed | |
| Docs | Not listed | |
| Reporting | Not listed | |
| Scheduling | Not listed | |
| Spreadsheet interface | Not listed | |
| Timeline view | Not listed | |
| Workflow automation | Not listed | |
Avaza vs Slack cost by team size
| Team size | Avaza | Slack |
|---|---|---|
| 1 user | FreeFree | FreeFree |
| 5 users | $12/moStartup | FreeFree |
| 10 users | $12/moStartup | FreeFree |
| 25 users | $12/moStartup | FreeFree |
| 50 users | $12/moStartup | FreeFree |
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 Avaza
- Higher Analytics score (7/10 vs 3/10)
- Higher Cost score (8/10 vs 5/10)
- Better fit for freelancers (8/10 vs 5/10)
- Better fit for consultancies (9/10 vs 7/10)
- Includes Gantt charts, which Slack lacks
Why choose Slack
- Higher Integration score (10/10 vs 6/10)
- Higher Scalability score (9/10 vs 5/10)
- Better fit for enterprise (9/10 vs 3/10)
- Better fit for mid-market (8/10 vs 3/10)
Pros & Cons
Avaza
Pros
- Covers the full billable-work cycle, from quote to project, timesheet, expense and invoice, so small agencies can avoid separate billing tools.
- Flat plan pricing starting at $11.95 a month and a free forever tier make it cheap for small teams, with annual billing equal to 10 months.
- Reviewers on G2 and Capterra consistently praise the interface and say the invoicing templates and tracking work well.
- Unlimited project collaborators and a client portal at no extra cost on every plan make it easy to bring clients into tasks.
Cons
- Each plan includes only a few users, and extra users cost $7 each per month, so costs climb for teams larger than about 10.
- Limited customization of templates and reports is a recurring complaint among G2 reviewers.
- According to a third-party review, subtasks cannot be assigned to other people or given their own deadlines, and automation is weaker than in ClickUp or monday.com.
- Time tracking has no idle detection, offline logging or overtime and break tracking, according to a third-party review.
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.
Not sold on either?
Frequently Asked Questions
Slack scores higher on our Project Management criteria: 7.1/10 against 6.5/10 for Avaza. The largest gap is in Analytics: 7/10 for Avaza and 3/10 for Slack.
Yes, both Avaza and Slack have a free plan.
Slack is the better fit for enterprise: we rate it 9/10 for them, against 3/10 for Avaza.
Avaza has Gantt charts and Time tracking, which Slack lacks.
