Customer.io is a customer engagement platform for email, SMS, push and in-app messaging. Compare features, pricing tiers, pros, cons and alternatives.
Customer.io is a customer engagement platform founded in 2012 by Colin Nederkoorn and headquartered in Portland, Oregon. It combines a customer data platform with a visual workflow builder so marketing and product teams can send behavior-triggered messages across email, SMS, push, and in-app channels.
The platform is aimed at teams that want segmentation based on real product behavior rather than static contact lists, making it popular with product-led growth companies and technically sophisticated marketing teams.
Journeys, Customer.io's workflow builder, lets teams create trigger-based, multi-step campaigns across email, SMS, push and in-app messaging, personalized with real-time customer attributes and event history, alongside A/B testing and send-time optimization.
Data Pipelines, the underlying customer data platform, ingests behavioral and profile data from apps, websites, CRMs and data warehouses, while a newer AI Agent feature can draft campaigns and summarize customer segments in natural language.
Customer.io's Essentials plan starts at $100 per month for up to 5,000 profiles and 1 million emails. Standard and Premium tiers scale profile and email volume with custom pricing, with Premium commonly starting around $1,000 per month billed annually.
An Enterprise tier offers custom-negotiated pricing with dedicated infrastructure and HIPAA compliance. All self-serve plans include a 14-day free trial, and qualifying early-stage startups can apply for discounted pricing through the Startup Program.
Customer.io is used to send behavior-triggered marketing and lifecycle messages across email, SMS, push and in-app channels based on real-time customer data.
Plans start at $100/month for the Essentials tier (5,000 profiles, 1M emails), with Standard, Premium and Enterprise tiers priced on custom profile and email volume.
No, but it offers a 14-day free trial on self-serve plans and a Startup Program discount for qualifying early-stage companies.
Email, SMS, push notifications, and in-app or on-site messaging, all orchestrated from a single workflow builder.
Braze, Iterable, Klaviyo, ActiveCampaign and HubSpot are commonly compared alternatives.
Yes, though Klaviyo is more specialized for e-commerce; Customer.io is popular across both B2C and B2B SaaS use cases.