I'm sorry, but the knowledge sources provided do not contain specific information about the pricing for a platform with more than 6 million users per day. However, Mixpanel's pricing is generally based on the number of monthly tracked users (MTUs).
To get a more accurate estimate of the cost, you can sign up and use Mixpanel's free plan for a week. After a week, you'll get a good estimate of your projected volume on your Plan Details & Billing page. If you are currently tracking data, you can see your events’ consumption in your Organization Settings.
For more detailed pricing information, I would recommend visiting Mixpanel's pricing page.
Please note that pricing can vary based on factors such as the specific features you need, the volume of data you're dealing with, and the level of support required.
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