Built for engineers
who mean business

Everything in Pro for 14 days, for one payment. It's for when your system design round is a few weeks away: practise the problems, fix incidents and take AI mock interviews right up to the day. It ends by itself; nothing renews. If you're preparing over months, Pro costs less per day.

Each time you complete an interview session (canvas → MCQ round → tradeoff questions → final reflection), that counts as one evaluation. Practice mode runs — where you simulate without submitting — are always unlimited and free.

Every paid plan is a one-time payment for the period you choose (Interview Ready for 14 days, or Pro for 1 or 3 months), and it never renews automatically. While a plan is active you can upgrade to a higher plan, but not downgrade. You can cancel at any time: you keep your plan until its period ends, then your account moves to Explorer (free). Payments aren't refunded for unused time, except under the 7-day refund guarantee.

Same features across all durations; longer plans cost less per month. Interview in the next few weeks? Interview Ready covers 14 days. Preparing for a few months? Pick 3 months.

Team and educational pricing is on our roadmap. If you're a hiring manager or engineering team lead who wants to use PRISM for interview prep at scale, reach out and we'll figure something out.