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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    Email on Acid

    Score6.4 out of 10
    N/AEmail On Acid is an email marketing solution built as a standalone product and as an integration into marketing automation tools such as Salesforce Marketing Cloud and Marketo. It includes features such as collaboration, code analysis, and spam filter testing.

    $86

    month

    Validity Engage

    Score9 out of 10
    N/AValidity Engage is an email marketing platform for high-volume enterprise marketing teams. It covers competitor intelligence, contact validation, design and testing, deliverability, and live email monitoring.N/A
    Pricing
    Email on AcidValidity Engage
    Editions & Modules
    The Basics
    $86
    month
    Premium
    $132
    month
    Professional
    $499
    month
    No answers on this topic
    Offerings
    Pricing Offerings
    Email on AcidValidity Engage
    Free Trial
    YesNo
    Free/Freemium Version
    NoNo
    Premium Consulting/Integration Services
    NoNo
    Entry-level Setup FeeNo setup feeNo setup fee
    Additional DetailsSave 15% on the monthly cost when billed annually!—
    More Pricing Information
    Community Pulse
    Email on AcidValidity Engage
    Considered Both Products
    Email On Acid Inc.
    Chose Email on Acid
    I've used Litmus for Salesforce Marketing cloud's emails along side Email on Acid. Litmus offers strong analytics and design insights, while Email on Acid excels in speed, collaboration and rendering accuracy. Compared to Litmus limited previews, Email on Acid provides more …
    Incentivized
    Chose Email on Acid
    Email on Acid has more features than Litmus. They offer more email clients to test on and during my time using both tools, had fewer clients that displayed as being down. This was a major time suck especially when testing for specific clients such as Microsoft Outlook.
    Incentivized
    Validity
    Chose Validity Engage
    Validity Engage has more functionality. But Email on Acid is also useful. I have used Email on Acid as well and it is very useful. I would say it depends on where you're in the organization. You may want to start with Email on Acid and then move to Validity Engage once you have …
    Incentivized
    Chose Validity Engage
    Validity Engage is by far superior to Email on Acid. The features and interface offer much more than any other platform on the market.
    Incentivized
    Chose Validity Engage
    We evaluated Validity Engage against Email on Acid and ultimately opted for Validity Engage due to its more expansive functionality and workflow. In fairness, Email on Acid offered a good rendering tool, but Validity Engage went further with engagement analytics, heatmaps and …
    Incentivized
    Chose Validity Engage
    Validity Engage is much more user-friendly and easier to use, and it comes with additional features that weren't available in Email on Acid.
    Incentivized
    Chose Validity Engage
    Having used both, I definitely prefer Validity Engage over Email on Acid. It's a little more intuitive in terms of UI, and previews load faster. The integration with Salesforce Marketing Cloud also sets it apart further.
    Incentivized
    Chose Validity Engage
    In my experience, Email on Acid is far less reliable for accuracy than Validity Engage
    Incentivized
    Chose Validity Engage
    We've tried Email on Acid in the past and Validity Engage has a much more advanced offering. The user interface is superior and they are constantly innovating and rolling out new features.
    Incentivized
    Chose Validity Engage
    Email on Acid years ago. It really is adoption that's shortchanging our use of Validity Engage.
    Incentivized
    Chose Validity Engage
    Email on Acid and BrowserStack. Both are good, but great to see Validity Engage investing, though the Dark mode preview doesn't really help much in builder.
    Incentivized
    Chose Validity Engage
    Validity Engage is superior to Email on Acid for our needs. Plus, we have a larger contract with Validity Engage within our parent company.
    Incentivized
    Chose Validity Engage
    I prefer Validity Engage, the proofing features put it over the top for us.
    Incentivized
    Chose Validity Engage
    I prefer the user interface and I like that its possible to join it with Salesforce
    Incentivized
    Chose Validity Engage
    From a platform and tool perspective, Validity Engage does a great job at providing rendering testing. No issues.
    Incentivized
    Chose Validity Engage
    Validity Engage has an easier view to see how the emails render across different email clients and seems to be very accurate to how they show up in mailboxes.
    Incentivized
    Chose Validity Engage
    We selected Validity Engage primarily due to its balance of cost and functionality compared to other platforms. It offers a wide range of features for testing, previewing, and optimizing email campaigns, which was critical for our needs. While some competitors offer similar …
    Incentivized
    Chose Validity Engage
    Overall better user interface, product and pricing. Validity Engage is very well-known in the industry.
    Incentivized
    Chose Validity Engage
    More robust device/client previews and accessibility testing, better SFMC integration
    Incentivized
    Chose Validity Engage
    Validity Engage has a stronger industry wide reputation and is more widely used across larger marketing teams. The overall capabilities, product enhancement and tool set far exceeds the capabilities of our tools I have evaluated before. Validity Engage is always coming out with …
    Incentivized
    Chose Validity Engage
    Validity Engage has a better UI and is more of a full featured suite of tools for a digital dev/marketer.
    Incentivized
    Chose Validity Engage
    Validity Engage has a better UI and is friendlier to non-email building people who need to collaborate and leave comments
    Incentivized
    Chose Validity Engage
    I prefer the Build feature on Validity Engage, as it allows me to share those previews with others. In addition, there seems to be a greater selection of available email previews. Finally, Validity Engage is just easier to use and understand.
    Incentivized
    Chose Validity Engage
    Great customer service and easy to use tool
    Incentivized
    Key User Insights
    Would buy again
    No answers on this topic
    99%
    Would buy again
    295 Answers
    Delivers good value for the price
    No answers on this topic
    98%
    Delivers good value for the price
    215 Answers
    Happy with the feature set
    No answers on this topic
    99%
    Happy with the feature set
    296 Answers
    Lived up to sales and marketing promises
    No answers on this topic
    98%
    Lived up to sales and marketing promises
    175 Answers
    Implementation went as expected
    No answers on this topic
    98%
    Implementation went as expected
    176 Answers
    Features
    Email on AcidValidity Engage
    Email & Online Marketing
    Comparison of Email & Online Marketing features of Email on Acid and Validity Engage
    Feature
    Email on Acid
    9.2
    4 Ratings
    14% above category average
    Validity Engage
    6.8
    378 Ratings
    16% below category average
    Mobile optimization10.02 Ratings9.4353 Ratings
    Email deliverability reporting8.53 Ratings8.9274 Ratings
    WYSIWYG email editor00 Ratings9.260 Ratings
    Dynamic content00 Ratings8.760 Ratings
    Ability to test dynamic content00 Ratings8.2240 Ratings
    Landing pages00 Ratings2.64 Ratings
    A/B testing00 Ratings6.511 Ratings
    List management00 Ratings7.08 Ratings
    Triggered drip sequences00 Ratings1.02 Ratings
    Reporting & Analytics
    Comparison of Reporting & Analytics features of Email on Acid and Validity Engage
    Feature
    Email on Acid
    5.5
    3 Ratings
    33% below category average
    Validity Engage
    8.0
    257 Ratings
    5% above category average
    Dashboards8.01 Ratings10.029 Ratings
    Standard reports3.02 Ratings7.5254 Ratings
    Custom reports00 Ratings6.5182 Ratings
    Pre-Send Testing
    Comparison of Pre-Send Testing features of Email on Acid and Validity Engage
    Feature
    Email on Acid
    -
    Ratings
    Validity Engage
    8.5
    358 Ratings
    4% above category average
    URL Validation00 Ratings9.3270 Ratings
    Link Tracking00 Ratings9.2235 Ratings
    Image Validation00 Ratings7.65 Ratings
    Inbox Display00 Ratings8.56 Ratings
    Email Accessibility Tools00 Ratings6.73 Ratings
    Spelling and Grammar Check00 Ratings7.31 Ratings
    Spam Testing00 Ratings9.5269 Ratings
    Email Previews00 Ratings9.6355 Ratings
    Best Alternatives
    Email on AcidValidity Engage
    Small Businesses
    Mad Mimi
    Score10 out of 10
    Mad Mimi
    Score10 out of 10
    Medium-sized Companies
    Campaign Monitor by Marigold
    Score9.1 out of 10
    Campaign Monitor by Marigold
    Score9.1 out of 10
    Enterprises
    Emma by Marigold
    Score8.4 out of 10
    Emma by Marigold
    Score8.4 out of 10
    All AlternativesView all alternativesView all alternatives
    User Ratings
    Email on AcidValidity Engage
    Likelihood to Recommend
    7.0
    (6 ratings)
    9.1
    (430 ratings)
    Likelihood to Renew
    -
    (0 ratings)
    8.8
    (33 ratings)
    Usability
    7.0
    (1 ratings)
    9.2
    (23 ratings)
    Availability
    -
    (0 ratings)
    8.5
    (9 ratings)
    Performance
    -
    (0 ratings)
    7.0
    (9 ratings)
    Support Rating
    -
    (0 ratings)
    9.1
    (3 ratings)
    In-Person Training
    -
    (0 ratings)
    7.0
    (2 ratings)
    Online Training
    -
    (0 ratings)
    4.5
    (2 ratings)
    Implementation Rating
    -
    (0 ratings)
    5.6
    (14 ratings)
    Configurability
    -
    (0 ratings)
    5.9
    (7 ratings)
    Ease of integration
    -
    (0 ratings)
    7.3
    (3 ratings)
    Product Scalability
    -
    (0 ratings)
    6.6
    (9 ratings)
    Vendor post-sale
    -
    (0 ratings)
    3.6
    (5 ratings)
    Vendor pre-sale
    -
    (0 ratings)
    8.1
    (4 ratings)
    User Testimonials
    Email on AcidValidity Engage
    Likelihood to Recommend
    Email On Acid Inc.
    Suited: Pre-deployment QA and rendering validation: If your audience uses a diverse mix of email clients and devices (e.g., corporate Outlook users, gmail users on mobile, etc.) Email on Acid ensures consistency across all of them. Less appropriate: If your organization only sends basic text-based emails or uses template with minimal HTML customization, then Email on Acid might not be appropriate.
    Incentivized
    Read full review
    Validity
    Proofing your emails is necessary. This is a tool that allows you to see how your email not only renders on multiple devices but how it performs. Some email building platforms will tell you their drag and drop templates are ready to go, however they stop short of analyzing accessibility, checking links, load speed among other things. I've also experienced drag and drop template issues as new email clients are released. Validity Engage provides peace of mind that you did your due diligence on crafting your email. While Validity Engage does provide some reporting you will not see every typical analytic an email report offers. However, you can use your Validity Engage data to enhance your email reports which in turn creates a robust view of email performance.
    Incentivized
    Read full review
    Pros
    Email On Acid Inc.
    • Email Spam Testing
    • Email Code Editing
    • Email Previews Across Multiple Providers
    Incentivized
    Read full review
    Validity
    • We haven’t explored the personalization features in depth yet, aside from using the Add-to-Calendar option, but we're excited to dig in further. Tools like live polls offer an easy way to boost engagement in our product marketing emails, and we see a lot of potential in using these templates to enhance personalization moving forward.
    • Validity Engage’ continuing education resources have been really helpful. I recently read an article on email deliverability that offered practical insights my team can apply moving forward. I especially appreciate how Validity Engage uses real examples and stats from the brands they work with—it makes the content feel actionable and relevant.
    • Online Training.
    Incentivized
    Read full review
    Cons
    Email On Acid Inc.
    • Limites Reporting and Analytics
    • It a little slow when it comes to Rendering email clients
    • The user interface is not so friendly
    Incentivized
    Read full review
    Validity
    • I've not seen many limitations but I have noticed that sometimes emails sent from our CRM take too long to land in Validity Engage, or sometimes don't land at all.
    • As a beginner it was quite difficult for me to make my way around the platform - I thought "Create new" CTA was actually creating something new, maybe "Import from CRM" would have been more understandable. There were a few others but I remember this one.
    • In the Emails section, whenever I hover over an email, I want to be able to copy the subject line instead of getting the different CTAs appear intrusively (Summary, Builder, Previews & QA, Proof, Analytics, Monitor) - maybe these could appear on the bottom of the textbox, instead of them being imposed on top?
    Incentivized
    Read full review
    Likelihood to Renew
    Email On Acid Inc.
    No answers on this topic
    Validity
    It's one the best tools that we've found for this type of tool but we would like some additional features like spell check so if there's a platform that features that with everything else Validity Engage has, then we'd potentially look to move over to that platform instead. However, we are overall pretty help with the platform.
    Incentivized
    Read full review
    Usability
    Email On Acid Inc.
    I'd rate Email on Acid a 7 out of 10 for overall usability. It is intuitive, reliable, and greatly enhances the QA process for email campaigns, though there's still some room for improvement in speed and report flexibility. For example: the previews sometimes take longer during peek hours, especially for complex or image-heavy emails
    Incentivized
    Read full review
    Validity
    Validity Engage has integrations that make the software an integrated part of my work every day. Being able to test right within my email builder is just brilliant. Daily I also use the web interface to review analytics and spam testing. Overall it is one of the pieces of software I use daily without any complaints or issues.
    Incentivized
    Read full review
    Reliability and Availability
    Email On Acid Inc.
    No answers on this topic
    Validity
    We have never had a problem with Validity Engage being unavailable so I would say their availability is fantastic. There might have been one time years ago that the site was down briefly but it also might have been a server issue on my end. Either way, Validity Engage was back up and running in a very short time.
    Incentivized
    Read full review
    Performance
    Email On Acid Inc.
    No answers on this topic
    Validity
    As with all technology, there are inevitably use-cases where you are unable to get to your original goal without some good old-fashioned experimenting. Some situations will (and are) more urgent which complicates an effective integration of a new process or a new team using an existing process but the "issues" are regularly resolved by re-starting the process specific to when Validity Engage is introduced to a project. If it doesn't come out the way you're anticipating, run it again and verify there is an issue before declaring all is lost.
    Incentivized
    Read full review
    Support Rating
    Email On Acid Inc.
    No answers on this topic
    Validity
    Absolutely fantastic support. It runs circles around the competition. They regularly reach out and chat, even if it's just to see if there's any issues we need to discuss. They clearly want the business and don't forget you once you sign the contract which is an issue with other similar services.
    Incentivized
    Read full review
    In-Person Training
    Email On Acid Inc.
    No answers on this topic
    Validity
    It was very informative one on one session for me. I was able to use Validity Engage without any issues.
    Incentivized
    Read full review
    Online Training
    Email On Acid Inc.
    No answers on this topic
    Validity
    It has all the required information.
    Incentivized
    Read full review
    Implementation Rating
    Email On Acid Inc.
    No answers on this topic
    Validity
    I didn’t really personally participate much in the implementation of Validity Engage, but from what I observed during the process, it was a smooth process with minimal disruptions. The team was able to get up and running quickly, and the platform’s user-friendly interface made onboarding fairly easy for everyone involved from the start.
    Incentivized
    Read full review
    Alternatives Considered
    Email On Acid Inc.
    Email On Acid is very similar to Litmus, but perhaps slightly more reliable. I have used both extensively, and prefer Email On Acid.
    Incentivized
    Read full review
    Validity
    This is not applicable to my role as I have used Validity Engage to test emails since I have started. Because of the ease of use, timeliness, consistent quality, and affordability that Validity Engage offers, I haven't found the need to look at similar products or organizations. If all of these features continue to stay strong, I don't plan on changing providers.
    Incentivized
    Read full review
    Scalability
    Email On Acid Inc.
    No answers on this topic
    Validity
    With our enterprise account, scalability is not an issue. I have not yet seen or heard of significant issues with user access, API connections for integrations etc. This includes down time for "Scheduled Maintenance" as some providers call them, Validity Engage has the technology backing to support a global team with a 24-hour workday across regions.
    Incentivized
    Read full review
    Return on Investment
    Email On Acid Inc.
    • Ability to send over 1000 previews spanning across 90 email clients.
    • Saves a lot of time getting emails out the door.
    Incentivized
    Read full review
    Validity
    • Validity Engage saves our team so much time by making the QA and email review process so much easier, streamlined, and efficient.
    • We often send out campaigns out to thousands of members, and Validity Engage gives us the assurance and peace of mind that everything is working as it should before it gets sent out.
    • Decreases the number of email review cycles we go through.
    Incentivized
    Read full review
    ScreenShots

    Email on Acid Screenshots

    Screenshot of Whether you know HTML or not, our new Campaign Precheck gives you the power to fix email mistakes while you QA, so you can create a message that every subscriber can read and understand.Screenshot of See what your email looks like on more than 70 clients and devices. View the emails in portrait or landscape so you know how your email will look for every subscriber.Screenshot of Test and edit instantly. Simply load up your email and tweak the code in our editor – you’ll see the preview change as you adjust the code.Screenshot of Whether you’re an email marketer or a developer, our tools can help your team streamline the email testing process. Use the “share” link to easily send test results to team members and clients. Our mark-up tool also allows reviewers to draw or comment within the email previews.Screenshot of Image validation makes sure your images render properly on every email client and device, so you can reach more subscribers on more platforms.Screenshot of Email testing, simplified. Send a test email directly from your email service provider or upload your HTML to our system. We’ll help you spot funky formatting, broken links and code problems.

    Validity Engage Screenshots

    Screenshot of Litmus Personalize Essentials, with live polls to give subscribers a voice and drive email engagement.Screenshot of Litmus Email Guardian, featuring 24/7 link monitoring to safeguard emails.Screenshot of Litmus' integrated insights reports, that can automatically combine metrics from Salesforce Marketing Cloud with subscriber engagement insights from Litmus.Screenshot of campaign preview, available in 100+ popular email clientsScreenshot of Litmus' inbox previewing and feedback tools, that help users to spot and fix issues early.