FEATURES
Top reasons companies choose us over OneSignal
Unlike OneSignal, Customer.io offers managed email deliverability with expert support and no need for a separate ESP license.
Custom objects
We believe in data flexibility. Group your customers based on how they relate to your business, and send relevant and timely messages with custom objects.
Built to scale
From small startups to global enterprise companies with hundreds of millions of users, we built our platform to grow alongside you.
Customer.io | OneSignal | |
|---|---|---|
Deliverability support | Yes | No |
Webhook-triggered campaigns | Yes | No |
Custom objects | Yes | No |
Ad audience sync | Yes | No |
Set attributes from webhook response | Yes | No |
Connected forms | Yes | No |
Anonymous events | Yes | No |
Data collections | Yes | No |
Live chat support | Yes | No |
ntegrated Customer Data Platform with every plan | Yes | No |
Customers love us
Preferred by product-led companies

We were blown away by our ability to have marketers create complex automations without having to get too technical. We also have engineers in the platform and love that both departments can easily execute their visions.
Ido Schachter
R&D Tech Lead


We use all channels in our campaigns, when it makes sense to do so. Last month we sent over 11M emails, over 5M push notifications, almost 1M in-app messages, and almost 100,000 SMS messages from Customer.io.
Diego Schocher
Business Architect


We use all channels in our campaigns, when it makes sense to do so. Last month we sent over 11M emails, over 5M push notifications, almost 1M in-app messages, and almost 100,000 SMS messages from Customer.io.
Daniel Sand
CEO









