Mailbird
One App. All your email accounts.
Postmark
Email for web applications
Updated February 2026
| Mailbird | Postmark | |
|---|---|---|
| Rating | 3.1★ | 5.0★ |
| Reviews | 8 | 17 |
| Pros | 7 | 9 |
| FactScore™ | 29.9 | 62.8 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Mailbird — Pros
Easy to use Lifetime license Clean design Windows support Customization options Integration capabilities Unified inboxBoth tools — Pros
—Only in Postmark — Pros
Reliable email delivery Fast performance Human support Transactional email Affordable pricing Email templates Excellent documentation Simple API Spam filterOnly in Mailbird — Cons
MacOS performance issues Drag and drop issues Lifetime license limitations Limited advanced features Multi-selection issues Large app size No mobile app Refund process issues Slow email deliveryBoth tools — Cons
—Only in Postmark — Cons
—Details
| Mailbird | Postmark | |
|---|---|---|
| Categories | Email clients | Email clients, Email marketing |
| Platforms | Web | Web · iOS |
| Became Popular | May 5, 2015 | July 23, 2014 |
| Website | getmailbird.com | postmarkapp.com |
Who Should Pick Which?
Choose Mailbird if...
- Easy to use
- Lifetime license
- Clean design
Choose Postmark if...
- Reliable email delivery
- Fast performance
- Human support
With a FactScore™ of 29.9 vs 62.8, Postmark leads in community reception. Mailbird uniquely offers Easy to use and Lifetime license, while Postmark stands out for Reliable email delivery and Fast performance.
What Users Say
Mailbird
I've been using Mailbird for a while now, and overall, it's been a positive experience. The ability to manage multiple email accounts from a single, unified inbox is a significant time-saver. Its c...
I used Mailbird on Windows a while ago and quite liked it. When I saw that they planned to make a macOS version I signed up for their mail list immediately. Now, years later I finally got an email ...
For a first edition of so called "excellent mail app" on windows now on Mac, there's still a lot of room for improvements. 1. drag and drop attachments is not working. 2. no multi-selection. 3. the...
Postmark
We use Postmark to send emails and manage newsletters directly from BlogBowl. Big thanks to Postmark for their reliable API and top-notch deliverability, which makes sure your newsletters actually ...
We use Postmark not only for our emails, but also to power Ply's built-in dynamic email capabilities. It's reliable, well documented and most of all - comes with awesome human support.
Once you get familiar with Postmark's layouts and templates, the service is great for quickly creating email templates and sending them out using their simple API. The UI is simple and intuitive.
Related Comparisons
Frequently Asked Questions
Which is better, Mailbird or Postmark?
Based on FactScore™, Postmark leads with a score of 62.8 vs 29.9. Postmark has a higher rating of 5.0★ compared to 3.1★.
What are the pros of Mailbird compared to Postmark?
Mailbird uniquely offers: Easy to use, Lifetime license, Clean design, Windows support, Customization options.
What are the pros of Postmark compared to Mailbird?
Postmark uniquely offers: Reliable email delivery, Fast performance, Human support, Transactional email, Affordable pricing.
Is Mailbird better rated than Postmark?
Mailbird is rated 3.1★ from 8 reviews. Postmark is rated 5.0★ from 17 reviews.
What is the FactScore™ of Mailbird and Postmark?
FactScore™ weighs rating and review volume together. Mailbird scores 29.9 and Postmark scores 62.8.
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