Nylas
Integrate inbox, calendar, and meetings into your app
Postmark
Email for web applications
Updated February 2026
| Nylas | Postmark | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 2 | 17 |
| Pros | 0 | 9 |
| FactScore™ | 23.9 | 62.8 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Nylas — Pros
No unique pros listedBoth 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 Nylas — Cons
—Both tools — Cons
—Only in Postmark — Cons
—Details
| Nylas | Postmark | |
|---|---|---|
| Categories | Email clients, Unified API, AI Infrastructure Tools | Email clients, Email marketing |
| Platforms | Web | Web · iOS |
| Became Popular | April 20, 2015 | July 23, 2014 |
| Website | www.nylas.com | postmarkapp.com |
Who Should Pick Which?
Choose Nylas if...
- No unique pros listed
Choose Postmark if...
- Reliable email delivery
- Fast performance
- Human support
With a FactScore™ of 23.9 vs 62.8, Postmark leads in community reception. Nylas uniquely offers No unique pros listed, while Postmark stands out for Reliable email delivery and Fast performance.
What Users Say
Nylas
We tried building email sync in-house. Never again. Nylas handles the messy parts of email and calendar integrations so we can focus on AI.
We like Nylas because of the abstraction that it offers between all the email providers.
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, Nylas or Postmark?
Based on FactScore™, Postmark leads with a score of 62.8 vs 23.9. Postmark has a higher rating of 5.0★ compared to 5.0★.
What are the pros of Nylas compared to Postmark?
Nylas uniquely offers: No unique pros listed.
What are the pros of Postmark compared to Nylas?
Postmark uniquely offers: Reliable email delivery, Fast performance, Human support, Transactional email, Affordable pricing.
Is Nylas better rated than Postmark?
Nylas is rated 5.0★ from 2 reviews. Postmark is rated 5.0★ from 17 reviews.
What is the FactScore™ of Nylas and Postmark?
FactScore™ weighs rating and review volume together. Nylas scores 23.9 and Postmark scores 62.8.
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