"When it comes to email automation, Customer.io is our secret weapon. The level of control and granularity it provides for building workflows beats the cookie-cutter approach of others. It empowers us to create hyper-personalized campaigns triggered by actual user behaviors, driving results without drowning in complexity."

"Amazing tool for communicating and segmenting a group of users."

"We use customer.io to communicate with our customers and love their service!"

"Enhance our customer service and streamline in-app operations."

"For the "Free for 12 months" Startup Program, offering us precise control over our messaging and user engagement. This has been instrumental in tailoring experiences that resonate with our community."

"We use customer.io to communicate with our customers for almost all transactions and campaigns."

"Customer.io powers our automated drip campaigns, helping us deliver personalized messaging and optimize customer engagement across multiple channels at scale."

"Best tool for email marketing!"

"Customer.io is the perfect in-app and marketing communication for SaaS apps!"

"It is the CRM that we needed to communicate with our customers. It is a developer first kind of approach where we can setup events and communicate with our customers through various channels."

"Added 20% Retention through planned notifications!"

"The best data-driven PLG onboarding tool in the world."