Acumbamail vs Constant Contact

Acumbamail

Figure	Acumbamail	Constant Contact
Price from	Free	$12/mo
Free plan	Yes	—
Free trial	Yes	Yes
Open source	—	—
Web	Yes	Yes
iOS	—	Yes
Android	—	Yes
API	Yes	Yes
Plans published	6	3
Spec score · Email Marketing Software	8.7 (#24)	9.1 (#7)
Spec score · Email marketing tools	8.2 (#77)	9.2 (#6)
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.	The public V3 API covers email marketing, contact management and ecommerce integrations.
Email automation	Yes	Yes
Founded	2013	The company’s own history says its mission began in 1995; LinkedIn lists 1996 as the founded year.
Free plan	Yes	No
Integrations	The integrations page lists Google Sheets, Microsoft Excel, Google Forms, Typeform, Stripe, Gmail, Microsoft Outlook, and PayPal through Zapier.	The app directory lists more than 300 native integrations, including Google, Microsoft, Canva, LinkedIn, Shopify, Eventbrite and Zapier.
Landing pages	Yes	Customizable lead-generation landing pages can add signups to selected contact lists.
Security	The maker says its infrastructure is hosted in Spain and its data center has ISO 9001, ISO 27001, and ISO 22301 certifications.	Constant Contact states that it uses physical, network, host, software and account security controls.
Audience segmentation	Yes	Yes
Subscriber limit	2500	500

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

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