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It's a split decision.
Choose Brevo if you want an all-in-one platform and a free email tier: its Free plan includes one seat, 300 emails a day, and automation for up to 2,000 contacts. Paid pricing is not published here. Choose Customer.io if you need data-driven journeys and can budget at least $100 monthly: Essentials includes 5,000 profiles and 1 million emails per month. Customer.io’s paid price and plan limits are clearer, but neither is a universal fit.
01Side by side
| Brevo | Customer.io | |
|---|---|---|
| Starting price | Paid price not published | $100/month for Essentials |
| Free plan | Free plan available | No free plan |
| Best for | Teams wanting marketing and CRM together | Teams building data-driven messaging journeys |
| Core strength | Email, SMS, WhatsApp, and sales tools | Event-based automation and segmentation |
| Learning curve | Guided no-code workflows for nontechnical users | Journeys use triggers, timing, and logic |
| Data and targeting | Web tracking for behavior-based targeting | 5,000 profiles and 2 object types on Essentials |
| Team and seat costs | Free plan includes 1 user seat | Seat limits and costs not published |
| Support | Reddit reports slow support | Premium onboarding; Enterprise priority support |
Brevo Choose Brevo if
- Choose Brevo if you need a free email plan.
- Choose Brevo if you want email, SMS, WhatsApp, and CRM together.
- Choose Brevo if guided no-code automation matters.
Customer.io Choose Customer.io if
- Choose Customer.io if you can budget at least $100 monthly.
- Choose Customer.io if you need data-driven messaging journeys.
- Choose Customer.io if you need 1 million monthly emails on Essentials.
02Pricing compared
Brevo is the lower-cost starting point: its Free plan costs $0 and includes one user, up to 300 emails a day, and marketing automation for up to 2,000 contacts. It stores up to 100,000 contacts, but every outgoing email carries Brevo branding. The pricing details we have do not list paid-plan prices, so compare those with a quote before switching. SMS and WhatsApp credits are pay-as-you-go and priced by country.
Customer.io starts at $100 per month for Essentials, billed monthly. That includes 5,000 profiles and 1 million emails per month. Premium is listed at $1,000 per month, billed annually; Enterprise pricing is not published. Extra emails cost $0.12 per 1,000, while some add-on charges and billing units are not specified. Qualifying startups may get up to 12 months free through its Startup Program.
03Features and depth
Brevo bundles email, SMS, WhatsApp, push notifications, sales tools, and CRM in one customer platform. Its feature set also includes a drag-and-drop email editor, templates, no-code automation with guided workflows, web tracking for behavioral segmentation, and loyalty tools. Aura AI agents are positioned for campaign creation, sales outreach, data analysis, and customer support tasks. That breadth may suit a team trying to consolidate channels and CRM, but the available pricing details do not show what paid plans include.
Customer.io is more centered on data-driven messaging and automated customer journeys. Campaigns can use triggers, content, timing, and logic, with segmentation and customer data for personalization. Design Studio supports message creation at scale, and campaign analytics are intended to surface optimization insights. Its AI agent can help build automations conversationally and provide campaign recommendations. Essentials has explicit limits of 5,000 profiles and 1 million monthly emails; Premium and Enterprise list custom profile and email volumes. If your priority is detailed, event-based journeys, Customer.io is the more focused fit; if you want multiple channels and CRM together, Brevo covers more ground.
04Ease of use and learning curve
Brevo may be easier to approach for a small team starting with campaigns: its materials describe a drag-and-drop editor, ready-to-use templates, and guided no-code workflows. But the Free plan’s daily email cap and contact limit for automation matter if you expect activity to grow, and paid-plan pricing is not published on the vendor's site.
Customer.io gives teams more control over journey logic, but its triggers, timing, segmentation, and profile limits require decisions about how customer data is organized. Its Essentials plan starts at $100 monthly, with 5,000 profiles. The available information does not establish which product is easier in practice, so map your current data and workflows before choosing.
Questions people ask
Which is cheaper, Brevo or Customer.io?
Brevo is cheaper to start because its Free plan costs $0 and includes 300 emails a day. Its paid prices are not published on the vendor's site. Customer.io Essentials starts at $100 per month and includes 5,000 profiles and 1 million emails per month.
Does Brevo have a free plan?
Yes. Brevo’s Free plan includes one user seat, 300 emails per day, storage for up to 100,000 contacts, and automation for up to 2,000 contacts. Brevo branding stays on outgoing emails. The published details do not list paid-plan prices.
Which platform is better for automated customer journeys?
Customer.io is the more focused option for journeys built around triggers, content, timing, and logic, with data-driven segmentation. Brevo also offers no-code marketing automation and guided workflows, alongside email, SMS, WhatsApp, and CRM tools.
What are Customer.io’s main plan limits?
Essentials costs $100 per month and includes 5,000 profiles, 1 million emails per month, two object types, three custom execution skills, and one weekly routine task. Premium is listed at $1,000 per month billed annually; its profile and email volumes are custom.