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Plans summary (more details)
- Basic: $9.9/month after 7 days free trial, solutions for 36 easy questions.
- Pro (most popular): $29/month, solutions for all 80 questions.
- Premium: $49/month, everying in Pro account and 20 video lectures for self guided learning.
We will email you a reference code to sign up a new account immediately after your purchase, please keep an eye on your email.