Email Subject Line Tester app

I’d love an email subject line tester app to add to my website.

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Thank you for the nice idea, @Mary_Sue!

Do you maybe have any examples of such apps that you love and use? It’ll be great to know how you see and what you expect from such an app :slight_smile:

Helga,

This is what I’ve found https://sendcheckit.com/email-subject-line-tester/api

There is a fee and it feels hard.

Warmly,
MSD

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