Email on Acid vs. Litmus

The most comprehensive and fully automated pre-deployment platform that delivers value where the competition can’t.

Weighing the benefits of Email on Acid vs. Litmus? Email on Acid has the highest standards of email checking in the industry at an affordable price. We save you time and help reach more subscribers with our UNLIMITED tests and world-class support team all while boosting your email ROI and protecting your brand reputation.

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FeatureEmail on AcidLitmus
Content Checks
Preheader preview
Spell check HTML
Find and fix image problems and load speeds
Find and fix accessibility issues
URL destination validation
Share email single previews
Comment tool for internal and external team collaboration
Unlimited Previews
Email previews on 90+ email clients and devices
Unlimited email testing and previews
Dark and light mode testing
Automated Deliverability Support
Spam testing
URL block list verification
Edit and Analyze
In-app HTML editor
Open, click and engagement tracking
Email heat mapping
Team Management Features
Custom User Profiles
Folder Management
Unlimited view only users
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Email Testing

Preview your email design on 90+ live (not emulated) email clients and devices.

Find rendering problems before you send. Share email previews with team members for streamlined, efficient collaboration. Unlimited email previews is included with every plan.

Trusted by the Biggest Brands in the World

EOA has significantly helped my company improve it’s email send confidence, as well as help monitor and quell for potential deliverability issues. We love your product and look forward in continued improvement. Thank you!
Karl Giron Omni Hotels