Phrasee for Email

For far too long, email marketers chose their subject lines by trusting their gut instinct, or following the status quo. Now there's a better way. Forget what you thought you knew about email subject lines. Say hello to the future. Say hello to Phrasee.

Phrasee Infographic
  • +35%

    increase in opens for

  • 2252%

    increase in
    ROI for

  • +57%

    increase in clicks for

Hear from our clients


“I knew I wanted Phrasee within the first two minutes of seeing the platform. I saw the ability to save time, and test a lot more than human-generated email subject lines.”

Saul Lopes, Customer Lifecycle Lead, Virgin Holidays

Want to know more?

Here at Phrasee, we really love email, and we’ve created an awesome collection of content over the years.

Here are just a few we think you’ll like…

The ultimate guide to subject line multivariate testing

Most email marketing experts will tell you that multivariate testing is email marketing best practice. But what they don’t tell you is how to do it. And, more importantly, how to do it with statistical rigor. Explore how to run effective multivariate tests with Phrasee’s ultimate guide.

Subject line split tests: which performance metric matters most?

While split testing email subject lines is considered best practice throughout the marketing industry, less thought has been given to which performance metrics should be used to identify the highest-performing subject line. We’ve got the data-driven insights you won’t want to miss.

Email subject line health check: Test your language diversity

It’s never been a more challenging time for retailers to stand out in a crowded modern inbox . Use our email subject line calculator to see where your linguistic opportunities lie.


Use Phrasee for...

Discover how applying actual AI to language can deliver big results!