Grammarly
Slack
| Feature | Grammarly | Slack |
|---|---|---|
| Pricing | Free / from $12/mo | Free / from $7.25/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.5 / 5 | 4.4 / 5 |
| Best For | writers, students, professionals, non-native-speakers | teams, enterprise, remote-workers, developers |
| Founded | 2009 | 2013 |
| Grammar | ✓ | ✗ |
| Spelling | ✓ | ✗ |
| Tone | ✓ | ✗ |
| Clarity | ✓ | ✗ |
| Plagiarism | ✓ | ✗ |
| Browser Extension | ✓ | ✗ |
| Channels | ✗ | ✓ |
| Huddles | ✗ | ✓ |
| Workflows | ✗ | ✓ |
| Integrations | ✗ | ✓ |
| File Sharing | ✗ | ✓ |
| Search | ✗ | ✓ |
✓ Grammarly Pros
- Works everywhere
- Clear suggestions
- Tone detection
- Plagiarism checker
✗ Grammarly Cons
- Premium is pricey
- Can over-correct
- Privacy concerns
✓ Slack Pros
- Excellent integrations
- Channels system
- Huddles
- Searchable history
✗ Slack Cons
- Message limit on free plan
- Notification overload
- Can be distracting
The Verdict
Grammarly is best for writers and students who need works everywhere. Slack is ideal for teams and enterprise looking for excellent integrations. Both tools offer free plans, so try each to see which fits your workflow.