Amplitude
Semrush
| Feature | Amplitude | Semrush |
|---|---|---|
| Pricing | Free / from $49/mo | Free / from $139.95/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.6 / 5 |
| Best For | product-teams, growth-teams, data-analysts, saas-companies | digital-marketers, agencies, enterprise, ppc-managers |
| Founded | 2012 | 2008 |
| Event Analytics | ✓ | ✗ |
| Cohort Analysis | ✓ | ✗ |
| Funnels | ✓ | ✗ |
| Retention | ✓ | ✗ |
| Experimentation | ✓ | ✗ |
| Session Replay | ✓ | ✗ |
| Cdp | ✓ | ✗ |
| Keyword Research | ✗ | ✓ |
| Site Audit | ✗ | ✓ |
| Rank Tracking | ✗ | ✓ |
| Competitor Analysis | ✗ | ✓ |
| Ppc Tools | ✗ | ✓ |
| Content Marketing | ✗ | ✓ |
| Social Media | ✗ | ✓ |
✓ Amplitude Pros
- Powerful behavioral cohort analysis
- Free tier generous (50K monthly tracked users)
- Built-in experimentation (A/B testing)
- Excellent for product-led growth metrics
✗ Amplitude Cons
- Complex event taxonomy required upfront
- Expensive at scale beyond free tier
- Steep learning curve for non-analysts
✓ Semrush Pros
- Most comprehensive marketing toolkit
- Excellent PPC and advertising tools
- Content marketing platform included
- Social media management built-in
✗ Semrush Cons
- Very expensive for small businesses
- Interface can feel overwhelming
- Some data less accurate for non-US markets
The Verdict
Amplitude is built for product teams and growth teams, with a focus on event-analytics and cohort-analysis. Semrush targets digital marketers and agencies and leads with keyword-research and site-audit.
On pricing, Amplitude is the clear winner for budget-conscious users — starting at $49/mo compared to $139.95/mo for Semrush. That $90.94999999999999/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.