Brevo is an email marketing platform that has expanded into SMS, a basic CRM, and transactional email, marketed as a Mailchimp alternative with usage-based rather than contact-based pricing.
It solves email marketing plus a lightweight sales pipeline in one place. The differentiator against Mailchimp is that Brevo doesn't charge by contact count on paid plans and bundles a CRM instead of requiring a separate tool.
Small businesses that want marketing email and basic CRM/sales tracking without stitching two separate tools together.
Free plan sends up to 300 emails a day (roughly 9,000 a month) to unlimited contacts, but every email carries Brevo branding unless you pay about $10.80/month extra to remove it. Usable for a low-volume list, tight for anything bigger.