ErrataOne price. Everything included.
- Full adaptive SAT: both sections, four modules, the break, scored 400–1600
- Section tests and single modules, timed exactly
- Desmos graphing calculator on every math question
- Worked explanations for every question
- Drill any skill at any difficulty
- Progress and unfinished exams saved to your account
Pay online with UPI, cards, netbanking or wallets.
Questions
How do I pay?
At checkout, choose Pay online and pay with any UPI app, card, netbanking or wallet through Razorpay. Your account unlocks the moment the payment goes through.
Do you have referral codes?
Yes. Enter a friend’s code at checkout for 10% off. Once you’re in, you get your own code on your account page, and you earn 10% of the price for every friend who pays with it. Only want to refer, not practise? Become a referrer: it’s free.
Can I share my account?
An account can be signed in on one device at a time. Signing in somewhere new signs the other device out.
Does my progress carry between devices?
Yes. Answers, bookmarks, scores and any exam you haven’t finished are saved to your account.
Do I need to install anything?
No — it runs in the browser on a laptop, tablet or phone. The calculator needs an internet connection.