Purchase day pass.

A day pass gives you 24-hour access to:

• Unlimited email testing – Preview emails across 90+ email clients and devices.

• Campaign Precheck – Streamline your email QA and fix mistakes within the app.

• Email Editor – Adjust your email code, test changes and view the results in real time.

• HTML Optimizer – We’ll optimize your code for the most popular email clients.

Unlike Email on Acid’s pay-as-you-go credits, the Day Pass usage window begins at the time you purchase the pass. The Day Pass lasts 24 hours. You may purchase as many Day Passes as you like; however, you can only purchase one Day Pass at a time.