4 stars
A really good product. Some versions in another language would be the fifth star! Thank you
By DC-DSI
Saturday, November 7, 2026 · Customer reviews of US businesses

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65 reviews
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Use Email on Acid to test your emails across the most popular clients, apps and devices, then go further to measure performance, find and fix errors - even if you don't know HTML. Free Trial.
Email on Acid (emailonacid.com) has 65 customer reviews on The Fair Hearing, with an average rating of 3.8 out of 5.
Showing 17 reviews with 4 stars · Clear filters
A really good product. Some versions in another language would be the fifth star! Thank you
By DC-DSI
Just two things I've looked at that could enhance the experience on EoA. 1.- Avoid the two clicks I need to do on the main page once logged in to see my projects. 2. Automatically update my test on mobile and desktop devices when I save my changes on the HTML area.
By Jose
Seems very useful tool
By Dereck
Hello EmailOnAcid Team, Your tools are great. Do you plan to make a french version ? (or other languages) that's will transform in 5 stars ! Thanks
By Fred
Great solution for testing emails. Should have an alternative pricing plan for occasional users.
By Cedric
Always a relief to know what our emails look like on multiple platforms/OS. Would be great if there were suggestions on how to adjust the HTML code when the design looks different on certain OS (e.g. iphone X) though.
By Ebenezer
Always have some email clients cannot capture previews. It happened daily.
By Minh
The system is a MUST to check emails in multiple browsers. Their pricing is affordable and the offerings are on par with competitors. Do find that troubleshooting one email does require creating new projects so I wish there was a better way to keep track of a template without new tests over and over.
By Daniel K.