Brevo
Customer.io
| Feature | Brevo | Customer.io |
|---|---|---|
| Pricing | Free / from $25/mo | From $100/mo |
| Free Plan | ✓ Yes | ✗ No |
| Rating | 4.3 / 5 | 4.4 / 5 |
| Best For | small-businesses, startups, ecommerce, developers-needing-transactional-email | saas-companies, product-marketers, growth-teams, data-driven-teams |
| Founded | 2012 | 2012 |
| Email Campaigns | ✓ | ✗ |
| Sms Marketing | ✓ | ✗ |
| Whatsapp Campaigns | ✓ | ✗ |
| Marketing Automation | ✓ | ✗ |
| Crm | ✓ | ✗ |
| Transactional Api | ✓ | ✗ |
| Landing Pages | ✓ | ✗ |
| Event Triggers | ✗ | ✓ |
| Segmentation | ✗ | ✓ |
| Multi Channel | ✗ | ✓ |
| A B Testing | ✗ | ✓ |
| Data Pipelines | ✗ | ✓ |
| Reporting | ✗ | ✓ |
✓ Brevo Pros
- Generous free plan with 300 emails per day
- Multi-channel: email, SMS, WhatsApp, push in one tool
- Built-in CRM included in all plans
- Transactional email/SMS API for developers
✗ Brevo Cons
- Email editor less polished than Mailchimp
- Automation features less advanced than ActiveCampaign
- Customer support can be slow on free plan
✓ Customer.io Pros
- Powerful event-driven automation
- Good segmentation
- Multi-channel messaging
- Developer-friendly
✗ Customer.io Cons
- Expensive for small lists
- Steep learning curve
- Email editor less visual
The Verdict
Brevo is built for small businesses and startups, with a focus on email-campaigns and sms-marketing. Customer.io targets saas companies and product marketers and leads with event-triggers and segmentation.
On pricing, Brevo is the clear winner for budget-conscious users — starting at $25/mo compared to $100/mo for Customer.io. That $75/mo difference adds up quickly for growing teams.
Brevo has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. Customer.io requires a paid subscription from day one.
Feature-wise, Brevo offers broader built-in capabilities (7 features vs 6), while Customer.io takes a more focused approach — which can mean a simpler, faster onboarding experience.
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.