Buffer vs Customer.io vs HubSpot vs Klaviyo

Buffer+

Starting price

$5

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Customer.io+

Starting price

$100/month

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HubSpot+

Starting price

$15/month

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Klaviyo+

Starting price

$20/month

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Attribute	Buffer	Customer.io	HubSpot	Klaviyo
Category	Social Media & Creator Tools	Marketing	CRM & Customer Management	Email & Messaging Marketing
Pricing	Free tier	Paid	Free tier	Free tier
Starting price	✓ $5	$100/month	$15/month	$20/month
Free tier	✓ Yes	No	✓ Yes	✓ Yes
Free trial	✓ Yes	✓ Yes	✓ Yes (14d)	No
Deployment	—	Cloud	—	—
API available	✓ Yes	Unknown	✓ Yes	✓ Yes
Platforms	ios, android	—	ios, android	—
Certifications	—	—	—	✓ 4
Integrations	2	—	✓ 23	2
Company	Founded 2010	—	Founded 2006	Founded 2012
Feature attributes
Sso Saml	— Unknown	— Unknown	✓ Yes	✓ Yes
Rbac	✓ Yes	— Unknown	✓ Yes	— Unknown
Mobile App	Ios And Android	— Unknown	Ios And Android	— Unknown
Webhooks	— Unknown	— Unknown	✓ Yes	✓ Yes
Data Export	✓ Yes	— Unknown	— Unknown	✓ Yes
Platforms Supported	— Unknown	— Unknown	— Unknown	— Unknown
Scheduling	✓ Yes	— Unknown	— Unknown	— Unknown
Analytics	✓ Yes	— Unknown	— Unknown	— Unknown
Social Inbox	— Unknown	— Unknown	— Unknown	— Unknown
Approval Workflow	✓ Yes	— Unknown	— Unknown	— Unknown
Pipeline Management	— Unknown	— Unknown	✓ Yes	— Unknown
Marketing Automation	— Unknown	— Unknown	✓ Yes	— Unknown
Custom Objects	— Unknown	— Unknown	✓ Yes	— Unknown
Reporting Dashboards	— Unknown	— Unknown	✓ Yes	— Unknown
App Marketplace	— Unknown	— Unknown	✓ Yes	— Unknown
Email Automation	— Unknown	— Unknown	— Unknown	— Unknown
Sms Marketing	— Unknown	— Unknown	— Unknown	✓ Yes
Templates	— Unknown	— Unknown	— Unknown	✓ Yes
Segmentation	— Unknown	— Unknown	— Unknown	✓ Yes
Deliverability Tools	— Unknown	— Unknown	— Unknown	✓ Yes

Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.