MailerSend vs Sendloop: Complete Comparison (2026)
An in-depth comparison of MailerSend and Sendloop to help you choose the right tool for your business.
Last updated: November 2026
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.
Sendloop
5.8/10
Sendloop is an email marketing platform from Octeth. Small businesses, agencies and high-volume senders use it for newsletters, automated journeys and transactional email.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.9/10 | 5.8/10 |
| Analytics | 6/10 | 5/10 |
| Cost | 7/10 | 7/10 |
| Customization | 6/10 | 6/10 |
| Ease of Use | 8/10 | 6/10 |
| Integration | 7/10 | 5/10 |
| Scalability | 7/10 | 6/10 |
| Security | 6/10 | 5/10 |
| Support | 8/10 | 5/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | $7/mo Hobby | $29/mo Starter |
| Estimated cost for 10 users | $110/mo Professional | Free Free |
| Features | ||
| Email Marketing | ||
| A/B Testing | Not listed | |
| Landing Pages | Not listed | |
| Segmentation | Not listed | |
MailerSend vs Sendloop cost by team size
MailerSend and Sendloop cost the same at 1 user; Sendloop costs less from 5 users.
| Team size | MailerSend | Sendloop |
|---|---|---|
| 1 user | FreeFree | FreeFree |
| 5 users | $7/moHobby | FreeFree |
| 10 users | $110/moProfessional | FreeFree |
| 25 users | $110/moProfessional | FreeFree |
| 50 users | $110/moProfessional | FreeFree |
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 MailerSend
- Higher Support score (8/10 vs 5/10)
- Higher Ease of Use score (8/10 vs 6/10)
- Better fit for startups (9/10 vs 6/10)
- Better fit for developers (9/10 vs 6/10)
Why choose Sendloop
- Lower estimated cost for 10 users: Free vs $110/mo
- Better fit for marketing teams (6/10 vs 4/10)
Pros & Cons
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.
Sendloop
Pros
- Priced by email volume with unlimited subscribers, so large, rarely mailed lists cost less than on contact-based plans.
- Supports marketing and transactional email in one account on every plan.
- The agency product, Studio, centralises the audiences of multiple clients.
- Offers an on-premise deployment and a managed deliverability service for high-volume senders.
Cons
- A competitor reports the blog has not been updated since 2021 and the X account since 2017, which raises questions about how actively it is developed.
- Independent reviews are few and mostly old.
- There is no public security or compliance documentation.
- Most integrations depend on Zapier rather than native connectors.
Not sold on either?
Frequently Asked Questions
MailerSend scores higher on our Marketing criteria: 6.9/10 against 5.8/10 for Sendloop. The largest gap is in Support: 8/10 for MailerSend and 5/10 for Sendloop.
Sendloop costs less for 10 users: free on its Free plan, against about $110/mo on its Professional plan for MailerSend, billed monthly.
Yes, both MailerSend and Sendloop have a free plan.
MailerSend is the better fit for developers: we rate it 9/10 for them, against 6/10 for Sendloop.
