ImprovMX
Create free email aliases for your domain name
Letters
Send beautiful emails, anonymously
FactScore™ 0Updated February 2026
| ImprovMX | Letters | |
|---|---|---|
| Rating | 5.0★ | N/A |
| Reviews | 8 | 0 |
| Pros | 5 | 0 |
| FactScore™ | 47.7 | 0 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in ImprovMX — Pros
Fast performance Custom domain support Easy setup Easy to use Email forwardingBoth tools — Pros
—Only in Letters — Pros
No unique pros listedOnly in ImprovMX — Cons
—Both tools — Cons
—Only in Letters — Cons
—Details
| ImprovMX | Letters | |
|---|---|---|
| Categories | Email clients, Email marketing | Email clients, Messaging apps, Design mockups |
| Platforms | Web | Web |
| Became Popular | October 19, 2016 | April 1, 2024 |
| Website | improvmx.com | letter.sh |
Who Should Pick Which?
Choose ImprovMX if...
- Fast performance
- Custom domain support
- Easy setup
Choose Letters if...
- No unique pros listed
With a FactScore™ of 47.7 vs 0, ImprovMX leads in community reception. ImprovMX uniquely offers Fast performance and Custom domain support, while Letters stands out for No unique pros listed.
What Users Say
ImprovMX
I love this product. It really let's me use my single Gmail account with all my domains and I've found it to be reliable, gets through SPAM, and is so affordable. Highly recommend.
Great product. Thoroughly enjoyed onboarding, they clearly understand UX. And a very generous free plan.
Letters
No reviews yet
Related Comparisons
Frequently Asked Questions
Which is better, ImprovMX or Letters?
Based on FactScore™, ImprovMX leads with a score of 47.7 vs 0. ImprovMX has a higher rating of 5.0★ compared to N/A★.
What are the pros of ImprovMX compared to Letters?
ImprovMX uniquely offers: Fast performance, Custom domain support, Easy setup, Easy to use, Email forwarding.
What are the pros of Letters compared to ImprovMX?
Letters uniquely offers: No unique pros listed.
Is ImprovMX better rated than Letters?
ImprovMX is rated 5.0★ from 8 reviews. Letters is rated N/A★ from 0 reviews.
What is the FactScore™ of ImprovMX and Letters?
FactScore™ weighs rating and review volume together. ImprovMX scores 47.7 and Letters scores 0.
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