Constant Contact vs Mailpro
Constant Contact
constantcontact.comMailpro
mailpro.comSide by side
| Figure | Constant Contact | Mailpro |
|---|---|---|
| Price from | $12/mo | $15/mo |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Plans published | 3 | 3 |
| Spec score · Email marketing tools | 9.2 (#6) | 9.1 (#13) |
| Spec score · Email Marketing Software | 9.1 (#7) | 8.8 (#22) |
| Spec score · Nonprofit Email Marketing Software | 8.9 (#4) | 8.6 (#11) |
| A/B testing | Subject-line A/B testing is provided to improve open rates. | The plan comparison lists A/B testing as a campaign creation feature, unavailable on Trial. |
| A/B testing | Yes | Yes |
| API | The public V3 API covers email marketing, contact management and ecommerce integrations. | Mailpro exposes Email, CRM/contact and SMS REST APIs using JSON; Email and SMS APIs also support XML. |
| API documentation | Developer documentation includes conceptual guides, endpoint references, OAuth2 instructions, schemas, examples and an interactive Try feature. | The developer portal documents endpoints, parameters, responses, errors, webhooks and authentication in six languages and supports trying calls interactively. |
| API limits | A developer account can manage up to 50 applications, and new applications initially have private access. | The documented API rate limit is 500 requests per minute per account, after which Mailpro returns HTTP 429 and rate-limit headers. |
| Automation | Automations support multi-step flows and event-triggered messages. | Automations support predefined workflows, triggers, actions and custom conditions; Flex excludes advanced automations while Pro includes them. |
| Company legal name | Crunchbase identifies the legal entity as Constant Contact, Inc. | The service's privacy materials identify MAXONY Suisse SA as the responsible processing entity. |
| Company size | LinkedIn lists company size as 1,001–5,000 employees and shows 1,126 employee profiles. | LinkedIn lists Mailpro as privately held with 11–50 employees. |
| Compliance | The company says it is certified under the EU-U.S., Swiss-U.S. and UK Extension Data Privacy Frameworks and can provide a SOC 2 report under NDA. | The company states GDPR-aligned processing, data-access and deletion rights, retention rules, audit logs and no resale of customer data. |
| Email automation | Yes | Yes |
| Founded | The company’s own history says its mission began in 1995; LinkedIn lists 1996 as the founded year. | 2001 |
| Free plan | No | Yes |
| Headquarters | Waltham, Massachusetts, United States | Maxony Suisse SA lists Rue Agasse 54, 1208 Geneva, Switzerland as its address. |
| Integrations | The app directory lists more than 300 native integrations, including Google, Microsoft, Canva, LinkedIn, Shopify, Eventbrite and Zapier. | Official integrations include WordPress, Shopify, PrestaShop, Magento, Zapier, Make and n8n, alongside CRM and form connectors. |
Plans
In their own words
Constant Contact
Constant Contact has no write-up on Specifiction yet; its figures are above.
Mailpro
Mailpro is a web-based email marketing service from a company founded in 2001 and headquartered in Geneva, Switzerland. It provides email automation, audience segmentation, and A/B testing for organizing campaigns, targeting groups, and comparing message versions. Landing pages are not included. The listed monthly send limit is 1,000 emails. Plans are named Trial, Pro, and Flex: Trial lasts 30 days, Pro covers 1,000 emails per month, and Flex provides 5,000 credits. The pricing note mentions a free plan and a 30-day trial, while the product facts identify no free plan and list the trial as available; no plan price is shown. Mailpro runs on the web. Its capabilities focus on sending and refining email campaigns through automation, segmentation, and testing. The 1,000-email limit and lack of landing pages are central considerations when matching it to a campaign workflow.