The basic subscription is free forever. Free teacher accounts, however, are limited to:

• 100 students
• 50 private worksheets
• 10 groups
• 25 workbooks
• 10 downloaded PDFs per day
• 25 mailbox answers
• 25 homework responses
• Ads shown on site

There are paid subscriptions for teachers who wish to increase these limits and have an ad free experience. Click here for more information and to view the plans and options available.