🚀 2400+ AI tools in the Mega Directory — catalogue updated November 2026.

Customer.io

Messaging platform for triggered emails, push, and SMS based on user behavior.

MarketingPaidEssentials from $100/mo

Customer.io is a messaging platform for triggered emails, push, and SMS based on user behaviour. It connects to your app or website, tracks what each user does, and sends the right message at the right moment — an onboarding nudge, a feature announcement, or a win-back offer — across email, push, and SMS.

Key Features

  • Behaviour-triggered email, push, and SMS
  • Visual workflow builder with logic and tests
  • Real-time user profiles and segments
  • Data warehouse and analytics integrations
  • A/B testing and send-time optimisation
  • Transactional and marketing messages in one place

Pricing

PlanPriceDetails
Essentials$100/moFrom $100/month; core messaging, workflows, and segments.
PremiumCheck official siteHigher limits, advanced features, and dedicated support; see the official site for current pricing.

Prices as listed in 2026 research. Always check the official site for the latest price — plans change. Free plan: No free plan — paid plans only.

Best for: product teams that send triggered messages based on what users actually do.
Popular with: Marketers, Developers, Business Owners

How it works

The platform is built for product and growth teams rather than newsletter senders. Its workflow builder supports complex logic, A/B tests, and data-driven segments, and it handles both marketing and transactional-style messages from one system. It integrates with data warehouses and analytics tools to keep user profiles up to date.

Customer.io's Essentials plan starts at $100 per month, with a Premium tier for larger teams. There is a free trial but no permanent free plan. For teams that need behaviour-triggered messaging at scale, it is one of the most flexible platforms available.

Pros and Cons

✓ Pros

  • Powerful behaviour-based triggers
  • Flexible workflow builder
  • Email, push, and SMS in one place
  • Good data integrations

✗ Cons

  • Starts at $100 a month — expensive for small teams
  • Learning curve for the full data model
  • No free plan, only a trial

Frequently Asked Questions

Is Customer.io free?

No — Customer.io has no free plan. Essentials from $100/mo

What is Customer.io best for?

product teams that send triggered messages based on what users actually do.

What kind of tool is Customer.io?

Customer.io is a Marketing tool on VerlumoAI.

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Last reviewed: November 2026

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