Help / Theory of Pi
FAQ
Your questions, answered.
What subjects does Theory of Pi cover?
Cambridge A-Level Mathematics and Physics, Cambridge IGCSE Mathematics and Physics, and Edexcel International GCSE Mathematics and Physics.
Can I use it on my phone?
Yes. Use Theory of Pi on a phone, tablet or laptop and sign in to the same account to access your progress.
How does the AI tutor work?
Ask about the lesson or question you are working on. Request a hint or simpler explanation, then try the next step yourself. Availability depends on your plan and activity.
What happens when I adjust my study plan?
The planner reschedules unfinished lessons using your exam date, available study time, selected days and module order. Completed lessons stay complete, partial progress is kept, and reviews remain separate. If the lessons do not fit, your existing schedule stays unchanged.
What if I am not happy?
Explore the free tier first. You can cancel a subscription through account settings; see the Terms for cancellation and refund details.
Do you offer free trials?
The free tier lets you begin without a paid subscription. Pricing and checkout show any current trial and when you will be charged.
Is my progress private?
Your account stores learning activity to track progress and support learning. The Privacy Policy explains how information is used and your choices.
Which lesson languages are available?
Lessons have 21 language options. Lesson translation is generated on demand; English is the original lesson text.