Q. What’s the difference between free and premium?
Your first 15 descriptions after you install the add-on are free. Post that, your account will be filled with 10 credits on the first of every month. For more credits, you can go to Add-ons → Meta Descriptions Writer → Purchase More Units. Credits can be purchased in packages of 25, 50, 100 and 200 descriptions. Get in touch for larger volumes.