Acumbamail vs Mailchimp

Acumbamail

Figure	Acumbamail	Mailchimp
Price from	Free	$13/mo
Free plan	Yes	Yes
Free trial	Yes	Yes
Open source	—	—
Web	Yes	Yes
iOS	—	Yes
Android	—	Yes
API	Yes	Yes
Plans published	6	5
Spec score · Email Marketing Software	8.7 (#24)	9.0 (#10)
Spec score · Email marketing tools	8.2 (#77)	9.4 (#2)
A/B testing	Yes	Yes
API	Acumbamail documents a language-independent REST API and says API use is intended for programmers or people with advanced technical knowledge.	Mailchimp exposes open Marketing and Transactional APIs authenticated with OAuth or API keys.
Email automation	Yes	Yes
Founded	2013	2001
Free plan	Yes	Yes
Integrations	The integrations page lists Google Sheets, Microsoft Excel, Google Forms, Typeform, Stripe, Gmail, Microsoft Outlook, and PayPal through Zapier.	Mailchimp advertises more than 300 integrations, including Shopify, WooCommerce, Canva, Zapier, Salesforce, WordPress, Stripe and QuickBooks Online.
Landing pages	Yes	Yes
Security	The maker says its infrastructure is hosted in Spain and its data center has ISO 9001, ISO 27001, and ISO 22301 certifications.	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
Subscriber limit	2500	500
Support	The maker describes its support team as friendly and quick, and the paid plans list telephone support and priority support at higher tiers.	Official feature pages state 24/7 service and support, with onboarding specialists and customer-success services for paid customers.

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

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