Coldscale.io
Email Provider Reducing Cold Email Outreach Costs By 91%
ImprovMX
Create free email aliases for your domain name
Updated February 2026
| Coldscale.io | ImprovMX | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 1 | 8 |
| Pros | 0 | 5 |
| FactScore™ | 15.1 | 47.7 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Coldscale.io — Pros
No unique pros listedBoth tools — Pros
—Only in ImprovMX — Pros
Fast performance Custom domain support Easy setup Easy to use Email forwardingOnly in Coldscale.io — Cons
—Both tools — Cons
—Only in ImprovMX — Cons
—Details
| Coldscale.io | ImprovMX | |
|---|---|---|
| Categories | Email clients, Email marketing, Lead generation software | Email clients, Email marketing |
| Platforms | Web | Web |
| Became Popular | February 14, 2024 | October 19, 2016 |
| Website | coldscale.io | improvmx.com |
Who Should Pick Which?
Choose Coldscale.io if...
- No unique pros listed
Choose ImprovMX if...
- Fast performance
- Custom domain support
- Easy setup
With a FactScore™ of 15.1 vs 47.7, ImprovMX leads in community reception. Coldscale.io uniquely offers No unique pros listed, while ImprovMX stands out for Fast performance and Custom domain support.
What Users Say
Coldscale.io
I have 36 inboxes at ColdScale for my marketing agencies' cold outreach. On Google Workspace, it cost me 252€, but now it only costs me 49€ pr. month, besides that i was super fast to setup.
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.
Related Comparisons
Frequently Asked Questions
Which is better, Coldscale.io or ImprovMX?
Based on FactScore™, ImprovMX leads with a score of 47.7 vs 15.1. ImprovMX has a higher rating of 5.0★ compared to 5.0★.
What are the pros of Coldscale.io compared to ImprovMX?
Coldscale.io uniquely offers: No unique pros listed.
What are the pros of ImprovMX compared to Coldscale.io?
ImprovMX uniquely offers: Fast performance, Custom domain support, Easy setup, Easy to use, Email forwarding.
Is Coldscale.io better rated than ImprovMX?
Coldscale.io is rated 5.0★ from 1 reviews. ImprovMX is rated 5.0★ from 8 reviews.
What is the FactScore™ of Coldscale.io and ImprovMX?
FactScore™ weighs rating and review volume together. Coldscale.io scores 15.1 and ImprovMX scores 47.7.
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