lockrMail
Protect your inbox and optimize your browsing
Postmark
Email for web applications
Updated February 2026
| lockrMail | Postmark | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 8 | 17 |
| Pros | 13 | 9 |
| FactScore™ | 47.7 | 62.8 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in lockrMail — Pros
Chrome extension Control over inbox Discount code notifications Easy to use Email management Automated filters Coupon code integration Loyalty program management Newsletter management No new inbox Online registration management Productivity improvement Site registration managementBoth 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 lockrMail — Cons
—Both tools — Cons
—Only in Postmark — Cons
—Details
| lockrMail | Postmark | |
|---|---|---|
| Categories | Email clients, Safety and Privacy platforms, Chrome Extensions | Email clients, Email marketing |
| Platforms | Web | Web · iOS |
| Became Popular | May 25, 2021 | July 23, 2014 |
| Website | lockrmail.com | postmarkapp.com |
Who Should Pick Which?
Choose lockrMail if...
- Chrome extension
- Control over inbox
- Discount code notifications
Choose Postmark if...
- Reliable email delivery
- Fast performance
- Human support
With a FactScore™ of 47.7 vs 62.8, Postmark leads in community reception. lockrMail uniquely offers Chrome extension and Control over inbox, while Postmark stands out for Reliable email delivery and Fast performance.
What Users Say
lockrMail
5 Stars! I first used Lockr to filter out all the unwanted promotional emails, but the chrome extension takes the product to a whole new level. The extension conveniently populates the coupon codes...
LockrMail is a 5-star product and solution to a daily problem growing onus consumers like kudzu. There are moments I consider a) not buying from a merchant or b) stopping my browsing journey becaus...
I’ve been a supporter and user of lockrMail since day 1. I do like that it’s not necessarily a new inbox but also very excited to be able to read emails directly in the extension. Love the approach...
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, lockrMail or Postmark?
Based on FactScore™, Postmark leads with a score of 62.8 vs 47.7. Postmark has a higher rating of 5.0★ compared to 5.0★.
What are the pros of lockrMail compared to Postmark?
lockrMail uniquely offers: Chrome extension, Control over inbox, Discount code notifications, Easy to use, Email management.
What are the pros of Postmark compared to lockrMail?
Postmark uniquely offers: Reliable email delivery, Fast performance, Human support, Transactional email, Affordable pricing.
Is lockrMail better rated than Postmark?
lockrMail is rated 5.0★ from 8 reviews. Postmark is rated 5.0★ from 17 reviews.
What is the FactScore™ of lockrMail and Postmark?
FactScore™ weighs rating and review volume together. lockrMail scores 47.7 and Postmark scores 62.8.
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