Question 1

What do Solved and Mastered mean?

Accepted Answer

A question is solved once you have rated yourself correct on it at least once, and mastered after three correct answers. Wrong answers never lose you a level; a question you have only missed simply stays new. The goal is to solve everything once, then let repetition push your key topics to mastered.

Question 2

Is my progress saved?

Accepted Answer

Yes: every rating, bookmark, and count is stored in the cloud on your account and follows you across devices and sessions. This applies on the free tier and on Premium alike.

Question 3

How does a session pick its questions?

Accepted Answer

A session draws randomly from every question matching your setup: the topics and guides you selected, the difficulty levels, and the completion filter. "New session, same setup" on the summary screen redraws with the same filters, taking your latest progress into account.

Question 4

Can I drill the questions I keep missing?

Accepted Answer

Yes. The "Weak spots" quick start on the Prep page builds a session from every question you have missed at least once and not yet mastered, across the general bank and any guide you have practiced.

Question 5

What are saved questions?

Accepted Answer

Tap the bookmark on any question, mid-session or while browsing the bank, and it lands on your saved page: your personal review deck for the days before the interview. Unsave a question once you have locked it in.

Question 6

Where do the guide questions come from?

Accepted Answer

The 1,542 guide questions are drawn from the interview questions inside the ten sector and product guides on the site. During a session, each one links back to the guide and the exact article it was asked in, so you can read the full context when an answer surprises you.

Technical questions

Frequently Asked Questions