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lockrMail

Protect your inbox and optimize your browsing

★★★★★ 5.0/5
FactScore™ 47.7
VS

Resend

Email for developers

★★★★★ 4.9/5
FactScore™ 110.1

Updated February 2026

lockrMail Resend
Rating 5.0★ 4.9★
Reviews 8 172
Pros 13 17
FactScore™ 47.7 110.1

FactScore™ Comparison

FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.

47.7
lockrMail FactScore™
👑
110.1
Resend FactScore™
★ Resend wins on FactScore™

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 management

Both tools — Pros

—

Only in Resend — Pros

Easy setup Developer-friendly API Reliable delivery Fast integration Simple UI High deliverability rates React Email integration Free tier Seamless integration Scalable email sending Dynamic templating Transparent pricing Excellent documentation Detailed logging Real-time analytics SMTP functionality Webhook support

Only in lockrMail — Cons

—

Both tools — Cons

—

Only in Resend — Cons

Slow performance Free tier Lack of unsubscribe API endpoint SMTP functionality Transparent pricing

Details

lockrMail Resend
Categories Email clients, Safety and Privacy platforms, Chrome Extensions Email clients, Engineering & Development, Email marketing
Platforms Web Web
Became Popular May 25, 2021 February 8, 2023
Website lockrmail.com resend.com

Who Should Pick Which?

Choose lockrMail if...

  • Chrome extension
  • Control over inbox
  • Discount code notifications

Choose Resend if...

  • Easy setup
  • Developer-friendly API
  • Reliable delivery

With a FactScore™ of 47.7 vs 110.1, Resend leads in community reception. lockrMail uniquely offers Chrome extension and Control over inbox, while Resend stands out for Easy setup and Developer-friendly API.

3

What Users Say

lockrMail

E
Ethan May 25, 2021
★★★★★

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...

K
Ken May 25, 2021
★★★★★

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...

R
Ryan Nov 14, 2023
★★★★★

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...

Resend

D
Dan Aug 23, 2023
★★★★★

Resend is awesome. Coincidently, my product is launching on producthunt today as well, and I use Resend. In the past I mostly used Send Grid. I was happy to move to a different alternative that was...

S
Sebastian Mar 27, 2025
★★★★★

Amazing developer experience, great UX (no visual clutter) and high deliverability/reliability. We started out using MailChimp but quickly felt like they were just throwing a bunch of features in o...

D
DRNKNDev Nov 4, 2025
★★★★★

Resend + React Email is the cleanest email stack we've used. Write emails as React components with Tailwind CSS, test locally, deploy confidently. Superior DX to SendGrid/Mailgun's template languag...

Frequently Asked Questions

Which is better, lockrMail or Resend?

Based on FactScore™, Resend leads with a score of 110.1 vs 47.7. Resend has a higher rating of 4.9★ compared to 5.0★.

What are the pros of lockrMail compared to Resend?

lockrMail uniquely offers: Chrome extension, Control over inbox, Discount code notifications, Easy to use, Email management.

What are the pros of Resend compared to lockrMail?

Resend uniquely offers: Easy setup, Developer-friendly API, Reliable delivery, Fast integration, Simple UI.

Is lockrMail better rated than Resend?

lockrMail is rated 5.0★ from 8 reviews. Resend is rated 4.9★ from 172 reviews.

What is the FactScore™ of lockrMail and Resend?

FactScore™ weighs rating and review volume together. lockrMail scores 47.7 and Resend scores 110.1.

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