Alternatives to Customer.io

Customer.io ranks #6 on the Top 11 The 11 Best Marketing Automation Software (2026). Below: the higher-ranked alternatives we’d steer you to instead, by use case.

Verified June 7, 2026. No paid placement — see methodology.

1. #1HubSpot

   9.3 / 9.4

   The best all-in-one platform with an exceptional CRM and user experience, ideal for scaling businesses.

   Best for: All-in-one CRM platform · Pricing: $$$ ($800 to $3,600/mo) · www.hubspot.com

2. #2ActiveCampaign

   9.1 / 9.4

   Unmatched automation power and flexibility at a competitive price point, perfect for sophisticated SMB marketers.

   Best for: Powerful and flexible automation · Pricing: $$ ($49 to $499/mo) · www.activecampaign.com

3. #3Klaviyo

   8.9 / 9.4

   The gold standard for e-commerce, with deep data integration and powerful segmentation for online stores.

   Best for: E-commerce & DTC brands · Pricing: $$ ($60 to $1,955/mo) · www.klaviyo.com

4. #4Adobe Marketo Engage

   8.6 / 9.4

   An incredibly powerful and customizable enterprise platform, but with a steep learning curve and high price.

   Best for: Enterprise B2B powerhouse · Pricing: $$$$ ($1,500 to $10,000+/mo) · business.adobe.com/products/marketo/adobe-marketo.html

5. #5Salesforce Marketing Cloud Account Engagement (Pardot)

   8.4 / 9.4

   The best choice for B2B teams on Salesforce, offering unmatched CRM integration for sales alignment.

   Best for: Salesforce-centric B2B marketing · Pricing: $$$$ ($1,250 to $15,000/mo) · www.salesforce.com/products/marketing-cloud/account-engagement/

See the full ranked list: The 11 Best Marketing Automation Software (2026). Or compare any two: side-by-side.