Mailchimp vs Twilio Email API

Mailchimp

Figure	Mailchimp	Twilio Email API
Price from	$13/mo	$19.95/mo
Free plan	Yes	Yes
Free trial	Yes	Yes
Open source	—	—
Web	Yes	Yes
iOS	Yes	—
Android	Yes	—
API	Yes	Yes
Plans published	5	5
Spec score · Transactional Email Software	9.2 (#2)	7.9 (#29)
Spec score · Transactional email services	8.8 (#8)	8.5 (#13)
Analytics	Reporting includes campaign reports, send-time optimization, smart recommendations and engagement analytics.	The pricing page lists real-time analytics, advanced statistics, searchable email activity, and an event webhook.
Founded	2001	2008
Free plan	Yes	No
Headquarters	Atlanta, USA	San Francisco, California, United States
Integrations	Mailchimp advertises more than 300 integrations, including Shopify, WooCommerce, Canva, Zapier, Salesforce, WordPress, Stripe and QuickBooks Online.	Official client libraries are available for C#, Go, Java, Node.js, PHP, Python, and Ruby.
Security	Mailchimp says its SOC 2 reports cover security, availability and processing integrity, and it maintains ISO 27001 certification and a VPAT.	SendGrid supports API key authentication and recommends controls including key rotation, IP access management, two-factor authentication, and SSO.
Support	Official feature pages state 24/7 service and support, with onboarding specialists and customer-success services for paid customers.	The pricing page says expert services and personalized support are available for purchase on Essentials and higher plans.

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

Twilio Email API has no write-up on Specifiction yet; its figures are above.