Brevo has free-tier options. The free plan is the right entry point if you're testing the product before committing.
Free
Free
1 seat included
300 emails/day forever · unlimited contacts · marketing automation up to 2k contacts · transactional email · basic CRM · SMS pay-as-you-go · drag-and-drop builder
Enterprise
Free
Custom · custom send volumes · dedicated CSM · SSO · advanced security · SLA
Once you hit the free-tier ceiling — usage caps, branding requirements, or feature gates — you'll need to move to a paid tier. See the full Brevo pricing.