Constant Contact vs MailerSend: Complete Comparison (2026)
An in-depth comparison of Constant Contact and MailerSend to help you choose the right tool for your business.
Last updated: November 2026
Constant Contact
5.8/10
Email and SMS marketing platform with event registration, sign-up forms and basic automation, aimed at small businesses and nonprofits that want live support.
MailerSend
6.9/10
MailerSend is a transactional email and SMS API with SMTP relay and a template builder, aimed at developers and businesses sending app-triggered messages.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 5.8/10 | 6.9/10 |
| Scalability | 5/10 | 7/10 |
| Ease of Use | 8/10 | 8/10 |
| Customization | 5/10 | 6/10 |
| Security | 6/10 | 6/10 |
| Support | 8/10 | 8/10 |
| Cost | 4/10 | 7/10 |
| Integration | 6/10 | 7/10 |
| Analytics | 5/10 | 6/10 |
| Pricing | ||
| Free plan | No | Yes |
| Cheapest paid plan | $12/mo Lite | $7/mo Hobby |
| Estimated cost for 10 users | $80/mo Premium | $110/mo Professional |
| Features | ||
| Email Marketing | ||
| A/B Testing | Not listed | |
| E-commerce Features | Not listed | |
| Landing Pages | Not listed | |
| Segmentation | Not listed | |
| SMS Marketing | Not listed | |
Constant Contact vs MailerSend cost by team size
MailerSend costs less up to 5 users; Constant Contact costs less from 10 users.
| Team size | Constant Contact | MailerSend |
|---|---|---|
| 1 user | $12/moLite | FreeFree |
| 5 users | $80/moPremium | $7/moHobby |
| 10 users | $80/moPremium | $110/moProfessional |
| 25 users | $80/moPremium | $110/moProfessional |
| 50 users | $80/moPremium | $110/moProfessional |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose Constant Contact
- Lower estimated cost for 10 users: $80/mo vs $110/mo
- Better fit for small business (9/10 vs 7/10)
Why choose MailerSend
- Has a free plan (Constant Contact does not)
- Higher Cost score (7/10 vs 4/10)
- Higher Scalability score (7/10 vs 5/10)
- Better fit for enterprise (6/10 vs 3/10)
- Better fit for startups (9/10 vs 6/10)
Pros & Cons
Constant Contact
Pros
- Live phone and chat support plus one-to-one onboarding are included from the cheapest Lite plan.
- Event registration, ticketing and payment collection are built into every plan, so small organisations do not need a separate events tool.
- The drag-and-drop editor and templates suit non-marketers who need to send newsletters quickly.
- Nonprofits can save up to 30 percent by prepaying for a year.
Cons
- Prices climb steeply with list size, reaching about 160 dollars a month for Standard at 10,000 contacts.
- Custom and ecommerce automations are only on Premium. The lower plans get one or three prebuilt paths.
- A/B testing is limited to subject lines.
- The free plan was removed, and reviewers report billing and cancellation complaints.
- Reviewers describe the interface as dated and needing more clicks than newer competitors.
MailerSend
Pros
- Developers can send through a REST API or an SMTP relay, with SDKs and connectors for Laravel, Django, Rails, Symfony, Supabase and Firebase.
- A free tier of 500 emails and a $7 Hobby plan make it cheap to start.
- Capterra reviewers repeatedly praise its responsive support and clear documentation.
- Built-in blocklist and DMARC monitoring help teams protect deliverability.
- Starter and higher plans add an SMS API, and a WhatsApp add-on is available.
Cons
- It is built for transactional email, not full marketing campaign management.
- Reviewers report sudden throttling or account suspensions after bounce or complaint thresholds are crossed.
- Free and Hobby plans keep only one day of activity history.
- SMS is limited to the USA and Canada.
Not sold on either?
Frequently Asked Questions
MailerSend scores higher on our Marketing criteria: 6.9/10 against 5.8/10 for Constant Contact. The largest gap is in Cost: 4/10 for Constant Contact and 7/10 for MailerSend.
Constant Contact costs less for 10 users: about $80/mo on its Premium plan, against about $110/mo on its Professional plan for MailerSend, billed monthly.
MailerSend has a free plan; Constant Contact does not list one.
MailerSend is the better fit for enterprise: we rate it 6/10 for them, against 3/10 for Constant Contact.
