Interspire Email Marketer vs Mailchimp

Interspire Email Marketer

Figure	Interspire Email Marketer	Mailchimp
Price from	$495/mo	$13/mo
Free plan	—	Yes
Free trial	—	Yes
Open source	—	—
Web	Yes	Yes
Windows	Yes	—
Linux	Yes	—
iOS	—	Yes
Android	—	Yes
API	Yes	Yes
Self-hosted	Yes	—
Plans published	5	5
Spec score · Email Marketing Software	8.1 (#75)	9.0 (#5)
Spec score · Email marketing tools	7.8 (#103)	9.4 (#2)
A/B testing	Yes	Yes
Email automation	Yes	Yes
Founded	2003	2001
Free plan	No	Yes
Integrations	It provides an XML API and webhooks; sending can use compatible SMTP services, and Google OAuth is available for Gmail and Google Workspace sending.	Mailchimp advertises more than 300 integrations, including Shopify, WooCommerce, Canva, Zapier, Salesforce, WordPress, Stripe and QuickBooks Online.
Security	Security features include two-factor authentication, fine-grained permissions, automatic IP banning, encrypted custom fields, and TLS connections to MySQL databases.	Mailchimp says its SOC 2 reports cover security, availability and processing integrity, and it maintains ISO 27001 certification and a VPAT.
Audience segmentation	Yes	Yes
Support	Direct customers receive 12 months of email-only technical support and free software upgrades; standard support excludes deliverability issues and server configuration.	Official feature pages state 24/7 service and support, with onboarding specialists and customer-success services for paid customers.

Interspire Email Marketer has no write-up on Specifiction yet; its figures are above.

Mailchimp has no write-up on Specifiction yet; its figures are above.