Loader.io vs Mailosaur

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Loader.io

See full pricing history

USD · US · source: loader.io

Plan	Pricing	Charged by	Offer type
Free	Free Free $0.00 / mo 10,000 clients / test 1 target host 1 min tests 2 urls per test Sign Up Now	Flat · per month	Standalone · Free
Pro	USD 99.95 monthly Pro $99.95 / mo 100,000 clients / test unlimited target hosts unlimited 10 min tests 10 urls per test Sign Up Now	Flat · per month	Standalone · Fixed

Mailosaur

See full pricing history

USD · US · source: mailosaur.com

Plan	Pricing	Charged by	Offer type
personal — annual billing	USD 20 monthly · USD 20 / month with annual commitment From $ 20 per month , billed annually	Flat · per month , billed annually	Standalone · Starting at

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Loader.io

Free

Plan card 1 target host: Included
Plan card 1 min tests: Included
Plan card 2 urls per test: Included

Pro

Plan card unlimited target hosts: Included
Plan card unlimited 10 min tests: Included
Plan card 10 urls per test: Included

Mailosaur

personal — annual billing

Highlights Users: Includes 1 user With support for up to 3 users

Included
Highlights Inboxes: 1 inbox (with unlimited email addresses)

Included
Highlights Unique domain name per inbox: Each inbox has a unique domain name

Included
Highlights Inbound emails: From 15,000 inbound emails/month

Included
Highlights Email compatibility testing: Included
Highlights API for test automation: Included
Highlights Forward individual emails to external addresses: Included

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

Loader.io

August 27, 2026 Source
- Free: Free
- Pro: USD 99.95 monthly

Mailosaur

August 27, 2026 Source
- personal — annual billing: USD 20 monthly · USD 20 / month with annual commitment