Guided
Practice
For System Design
Work through common interview questions step-by-step with personalized feedback.
Master System Design with engaging, practical exercises
1
Choose a Common Problem
Choose from problems you're likely to see in real interviews and that will teach you fundamental patterns that apply to all designs.
2
Design the System
Use a whiteboard and narrate your thinking, just like you would in a real interview. Going step-by-step through our recommended delivery framework.
3
Receive Personalized Feedback
Get personalized feedback on each step of the design, tuned by FAANG interviewers with decades of experience.
See it in action
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Month
Year
$39
$79
1 year of access
Hear from recent users
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"This allows me to practice again and again. Each time when I attempt, I learn something new based on the feedback."
"I am very impressed at the use of a LLM to determine feedback for each step. Excellent experience and highly valuable feedback."
"This is phenomenal. Just want to say this is absolutely fantastic and made me realize that I know more than I thought I did, thank you so much"
"I was so scared to even start practicing because of lack of structure. This has helped me a lot with understanding the process and identifying my weakness."
"This is awesome! I was so scared to even start practicing because of lack of structure. This has helped me a lot with understanding the process and identifying my weakness."
"One of the best uses of LLMs I've seen in a product. The feedback is constructive and the experience is fun."
"This has been an extremely engaging and helpful practice session. The inputs have been very helpful and have helped me design this system by nudging me with inputs. I have never had the chance to practice system design like this."
"This was absolutely fantastic and made me realize that I know more than I thought I did, thank you so much"
"This tool is insane. I have been racking my brains trying to study for system design interview on my own and trying to determine where/why my solution is meeting/missing the bar. I feel my progress in solving system design questions just 10x'd with this tool."
"This is a really efficient way to practice for system design interviews. Watching videos and passively learning doesn't make the material stick. Actually trying to answer the question first before receiving feedback and checking the answer key helps a lot."
"I really love this tool! The feedback is incredibly detailed and constructive."
"This is amazing practice. I was able to follow the feedback provided and improve my design. Each time when I attempt, I learn something new based on the feedback."
"One of the best ways to learn system design. More specifically, the framework for approaching any system design problem is amazing and follows an iterative approach to build the system."
"Very impressed product! It was good practice, and the AI suggestions were surprisingly useful. I definitely found it helpful in my interview preparation."
"I loved the flow of this - this was my first ever system design interview, it felt really nice to learn in this setting!"
"Can't stress enough how much I love these Guided Practice tools!!"
"Great platform, easy to use and simulate the interview scenarios. Feedback was on point with very specific details."
"Getting feedback while writing the answers is brilliant."
"Wonderful experience. I love the feedback. This tool is revolutionary."
"This was absolutely fantastic and made me realize that I know more than I thought I did, thank you so much"
"Very impressed with this tool. This is exactly what I needed to prepare for my upcoming interviews."
"Amazing experience! This is exactly what I needed to prepare for Meta"
"This is really helpful. I was able to follow the feedback provided and improve my design. It is great."
"Much, much better experience than I expected."
FAQ
What if I'm not satisfied?
We offer a 100% money-back guarantee. We want you to be happy with our product and, if not, you can email us within 1 month of purchase for a 100% refund.
Does the purchase auto-renew each year?
No, this is a one-time purchase.
Will I have access to additional practice problems as they are launched?
Yes! Your access is valid for 1 year or 1 month from the date of purchase, and you will have access to all future problems (and new features) as they are released.
Can you add a specific new problem?
We're adding problems all the time. If you want to see a specific problem you can vote for it.