MailerSend vs Stamped: Complete Comparison (2026)
An in-depth comparison of MailerSend and Stamped 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.
Stamped
6.3/10
Stamped is a product reviews, user-generated content, and loyalty platform that helps Shopify and other ecommerce brands gather social proof and drive repeat purchases.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.9/10 | 6.3/10 |
| Analytics | 6/10 | 5/10 |
| Cost | 7/10 | 6/10 |
| Customization | 6/10 | 7/10 |
| Ease of Use | 8/10 | 6/10 |
| Integration | 7/10 | 7/10 |
| Scalability | 7/10 | 6/10 |
| Security | 6/10 | 5/10 |
| Support | 8/10 | 7/10 |
| Pricing | ||
| Free plan | Yes | No |
| Cheapest paid plan | $7/mo Hobby | $23/mo Reviews 200 orders (Shopify) |
| Estimated cost for 10 users | $110/mo Professional | $23/mo Reviews 200 orders (Shopify) |
| Features | ||
| E-commerce Features | Not listed | |
| Email Marketing | Not listed | |
MailerSend vs Stamped cost by team size
MailerSend costs less up to 5 users; Stamped costs less from 10 users.
| Team size | MailerSend | Stamped |
|---|---|---|
| 1 user | FreeFree | $23/moReviews 200 orders (Shopify) |
| 5 users | $7/moHobby | $23/moReviews 200 orders (Shopify) |
| 10 users | $110/moProfessional | $23/moReviews 200 orders (Shopify) |
| 25 users | $110/moProfessional | $23/moReviews 200 orders (Shopify) |
| 50 users | $110/moProfessional | $23/moReviews 200 orders (Shopify) |
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
- Has a free plan (Stamped does not)
- Higher Ease of Use score (8/10 vs 6/10)
- Higher Analytics score (6/10 vs 5/10)
- Better fit for agencies (7/10 vs 4/10)
Why choose Stamped
- Lower estimated cost for 10 users: $23/mo vs $110/mo
- Higher Customization score (7/10 vs 6/10)
- Better fit for e-commerce (10/10 vs 6/10)
- Better fit for marketing teams (7/10 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.
Stamped
Pros
- Rated 4.7 stars from about 3,700 reviews on the Shopify App Store, and 91 percent of those ratings are five stars.
- Review submissions can automatically award loyalty points, which links the reviews and loyalty programs.
- Reviews can be syndicated to Google Shopping, Meta, and the Shop App.
- Integrates with Klaviyo, Attentive, Omnisend, Gorgias, and Shopify Flow.
- Many merchants praise hands-on support and the free review migration.
Cons
- Merchants report slow or missing widgets, a backend that fails to load, and settings that reset.
- Some users report billing disputes, including charges after uninstalling, because billing can run outside Shopify.
- Prices on Stamped's site, which start at 199 dollars per month per product, are much higher than the entry Shopify listing, and pricing depends on order volume.
- Stamped does not run full email or SMS campaigns, so brands need a separate tool such as Klaviyo.
- Reviews and loyalty have historically been separate apps, which some users find confusing to set up.
Not sold on either?
Frequently Asked Questions
MailerSend scores higher on our Marketing criteria: 6.9/10 against 6.3/10 for Stamped. The largest gap is in Ease of Use: 8/10 for MailerSend and 6/10 for Stamped.
Stamped costs less for 10 users: about $23/mo on its Reviews 200 orders (Shopify) plan, against about $110/mo on its Professional plan for MailerSend, billed monthly.
MailerSend has a free plan; Stamped does not list one.
Stamped is the better fit for e-commerce: we rate it 10/10 for them, against 6/10 for MailerSend.
