Mailchimp
PostHog
| Feature | Mailchimp | PostHog |
|---|---|---|
| Pricing | Free / from $13/mo | Free / from $0/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.3 / 5 | 4.5 / 5 |
| Best For | small-businesses, startups, solopreneurs, e-commerce | developers, startups, product-teams, privacy-conscious-companies |
| Founded | 2001 | 2020 |
| Email Campaigns | ✓ | ✗ |
| Automation | ✓ | ✗ |
| Landing Pages | ✓ | ✗ |
| Audience Segments | ✓ | ✗ |
| Analytics | ✓ | ✗ |
| Templates | ✓ | ✗ |
| A B Testing | ✓ | ✗ |
| Product Analytics | ✗ | ✓ |
| Session Replay | ✗ | ✓ |
| Feature Flags | ✗ | ✓ |
| Experiments | ✗ | ✓ |
| Surveys | ✗ | ✓ |
| Data Warehouse | ✗ | ✓ |
| Self Hosting | ✗ | ✓ |
✓ Mailchimp Pros
- Free tier for up to 500 contacts
- Easy drag-and-drop email builder
- Built-in automation workflows
- Good reporting and analytics
✗ Mailchimp Cons
- Gets expensive as list grows
- Automation less powerful than competitors
- Limited A/B testing on lower plans
✓ PostHog Pros
- All-in-one analytics replacing multiple tools
- Generous free tier (1M events/month)
- Self-hostable for full data control
- Feature flags and experiments built-in
✗ PostHog Cons
- Can be complex to set up properly
- Self-hosting requires infrastructure maintenance
- Less polished UI than Amplitude
The Verdict
Mailchimp is built for small businesses and startups, with a focus on email-campaigns and automation. PostHog targets developers and startups and leads with product-analytics and session-replay.
On pricing, PostHog is the clear winner for budget-conscious users — starting at $0/mo compared to $13/mo for Mailchimp. That $13/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.
Both tools are a solid fit for startups — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.
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.
