Plans and bundles
Practice plans
Practice is every scenario on a canvas — system design and cloud architecture — all three ways of answering, AI reviews of your answers and of designs of your own — a daily allowance that grows with the plan, 5 a day for one month up to 15 for six — the shape library, and 10 fresh scenarios a month written for you, for 1, 3 or 6 months. A system design question and an AWS scenario are free without any of this.
The Learn library is free for everyone right now — every page, in full, no account — while it is still being written. Nothing to buy there.
Choose how long you want to practise
What you getFreeWith a plan
- One scenario, as multiple choice or fill the gaps
- Your score, with the reason behind every line
- Every scenario, three ways to answer
- Building from scratch
- An AI review of your answers
- An AI check of designs of your own
- The shape library
- Secure checkout by Razorpay
- One payment. Nothing renews.
- Opens the moment you pay
Read the refund policy before you buy.
Every practice plan includes the AI review
- An AI review of your answersDesigns you build from scratch, multiple-choice picks and filled-in gaps, each reviewed against the scenario and the choices you actually made. A shared daily allowance — 5 a day on the monthly plan, 10 on the three-month, 15 on the six-month — and a design reviewed before comes back without using one.
- Why it works, or why it doesn’tWhether your design meets what the scenario asks, and what in it is wasteful.
- What’s needed, and what isn’tEach missing piece named with the reason the scenario needs it, and each extra with what it costs you.
- Where you’re laggingA scored breakdown of every service and connection, and the one thing to fix next.
- A check of designs of your ownDescribe a system in your own words, draw it, and the AI says whether the drawing does what you described. No score, because nobody wrote an answer key for it. It shares the daily allowance.
- Understand how your design breaksFor a design of your own, every failure it can suffer, what each does and where — worked out exactly, and free to read as often as you like. The AI’s read of which ones bite first at your scale shares the daily allowance.
- New scenarios, written for you10 a month: a brief nobody has answered before, on a shape you have not practised yet, built from scratch and marked by the same scorer as the rest. Its own allowance, separate from the daily reviews.
- Every scenario, three ways to answerBuild from scratch, pick from multiple choice, or fill the gaps in a reference design.
- The shape library16 architectures, the signals in a brief that point at each, and what each costs you.