Brevo vs Customer.io
 Brevo |  Customer.io | |
|---|---|---|
| Sentiment | ||
| Score | 66/100 | 41/100 |
| Rank in category | #1 | #4 |
| Rated comments | 34 | 16 |
| Best for | Small businesses and nonprofits with large lists that send infrequently; Beginners and small newsletters that want a free or cheap starting tier; Teams that want marketing and transactional email from one provider | SaaS and app teams whose lifecycle messaging is driven by in-product events; Teams with clean event data and developer time to maintain it; Products needing segmentation across distinct audiences, such as two-sided marketplaces |
| Skip it if | Ecommerce stores that need complex, Klaviyo-style flows; Small teams that need many native integrations without IT help | Early-stage or freemium apps watching cost per contact; Marketers without developer support for event setup; Teams wanting HubSpot to stay the single source of truth for lifecycle stages |
| Pricing (vendor-stated) | Free plan sends up to 300 emails/day. Paid plans are priced by monthly email volume (campaigns and transactional): Starter from $9/mo for 5,000 emails ($8.08/mo billed yearly), Standard from $18/mo ($16.17/mo yearly) adding automation, A/B testing and no Brevo logo, Professional from $499/mo ($449.08/mo yearly) from 150,000 emails, and custom-priced Enterprise. Removing Brevo branding on Starter is a $10.80/mo add-on; pay-as-you-go email credits that do not expire are also sold. Prices shown in USD. | Essentials starts at $100/mo billed monthly for 5k profiles and 1M emails per month, with extra profiles at $0.009 each and extra emails at $0.12 per 1,000. Premium starts at $1,000/mo billed yearly with custom volumes; Enterprise is sales-led. No free plan; a trial is offered (length not stated), and startups that raised under $10M can get a year free. |
Independent users in r/Emailmarketing and r/ecommerce mostly treat Brevo as the budget pick: cheap for large lists because plans are priced on emails sent rather than contacts, simple enough for beginners, and backed by support that several long-time users praise. The trade-off is depth: users call its automations limiting for complex or ecommerce flows, one reports ecommerce automations misfiring, native integrations are thin, and deliverability reports conflict. 42 of 97 comments were promotional and excluded, including a near-identical PushOwl pitch posted by four accounts, matching Omnisend switch stories, and repeated plugs for Sender, Mailtrap, Moosend and EngageBay.
Users like
- Cheap for big lists: pricing follows emails sent rather than contacts stored, so infrequent senders with large lists pay less, and pay-as-you-go credits suit occasional sends[1][2][3][4][5][6]
- Customer support gets repeated praise from long-term users, including a four-year customer and one who moved from Klaviyo[1][2][3][4]
- Simple, easy interface that beginners and small teams can run without technical help[1][2][3][4][5]
- Free tier of 300 emails a day with no contact cap covers small club or startup newsletters[1][2][3]
Users complain about
- Automation is fine for standard sequences but limiting for complex multi-branch or ecommerce flows; one WooCommerce user says ecommerce automations failed to trigger when buyers used coupons[1][2][3][4]
- Few native integrations, so small teams without IT skills may need help connecting their stack[1]
- Deliverability is contested: one user's open rate rose after leaving Brevo for MailerLite, another saw open rates under 5% on two IPs, and a new sender found Gmail filed every email under Promotions[1][2][3]
- Smaller gaps users name: limited design customization and clunky consent management[1][2]
Independent users see Customer.io as the event-driven lifecycle tool to pick when product usage defines who gets what, and several suggest making it the core orchestration layer with a lighter CRM beside it. The trade-off is effort and cost: users say event tracking needs a developer for most changes, costs climb as the list grows, and pairing it with HubSpot leaves you babysitting lifecycle-stage sync. Much of the discussion is recommendations rather than first-hand reports, and 8 of 32 comments were promotional, including an AI-generated reply that leaked its own prompt and plugs for Courier, Yonoma and Pulse for Reddit.
Users like
- Handles behavior-driven lifecycle orchestration across email, push and in-app well, so users recommend making it the core engagement layer when app events drive lifecycle[1][2][3][4][5]
- Recommended for advanced segmentation and automation beyond entry-level ESPs, including tagging separate audiences like clinics and end users in a marketplace[1][2][3]
- Long-term users say it is powerful and works well once running; a two-year user who moved off Pardot called it the best tool in their stack[1][2]
- Seen as the least expensive option among SaaS-oriented lifecycle platforms, with Braze and Iterable as tools to graduate to[1]
Users complain about
- Setup is slow and event tracking usually needs a developer; workflows, segments and behavioral campaigns take time to build[1]
- Costs rise as the list grows, and one freemium startup found roughly $1K a month too much and built an internal tool instead[1][2]
- Running it alongside HubSpot means fragile lifecycle-stage sync and logic maintained twice; one team said failed webhooks left the two tools disagreeing on a contact's stage[1][2][3]
- Editor annoyances: broadcast emails don't autosave, causing lost work, and a workflow's goal is a separate step[1][2]