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System Design interview prep

System Design interview prep

AI Simulator for system design

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2 reviews
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📚 Education
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Details

  • Released
  • Updated
  • December 14, 2025
  • March 9, 2026

Features

Developer

Abdelhak El Moussaoui
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System Design interview prep screenshot #1 for iPhone
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System Design interview prep screenshot #6 for iPhone
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🧾$3.99 - $99.99
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About

This app simulates system design interviews with an AI interrogator and interactive scenarios. Practice real-world architecture problems, receive instant feedback, and track your progress to ace your next tech interview.

✓Interactive War Room for architecture scenarios
✓AI Interrogator challenges design decisions
✓Realistic system design interview questions
✓Daily practice drills for skill sharpening
✓Detailed performance analytics
✓Instant feedback and best practice learning
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What's New in System Design interview prep

1.0.3

March 9, 2026

- Faster, value‑first onboarding with clearer messaging - Daily Drill now stays within the main navigation for a smoother flow - Advanced architecture analysis

More

Subscription plans

Unlimited access

Full access for one month

$12.991 Month
7 Days trial
How to cancel System Design interview prep subscription ⁉️

User reviews

Most RecentHighest RatedLowest Rated

Cool but half-baked ChatGPT wrapper

The description doesn’t match the application (design a link shortener? Huh?) and some of the optimal solutions seem dubious. The Pro version supposedly has “advanced analytics” but none are seen anywhere in the app while you’re on the trial.
biometrically-pterosaurianbiometrically-pterosaurian

Response from developer

Thanks for the candid feedback, and sorry for the confusion and frustration this caused. We’re reviewing the app description to make sure it accurately reflects the current features, and we’re also validating the “optimal solutions” output to ensure it’s technically sound. We’re actively working to make “advanced analytics” visible during the trial so it matches what’s advertised. We’d really appreciate the chance to learn more and make this right. Could you share details through this link: https://forms.gle/pYY51qc5irvPoSv59 ? Your input directly helps us prioritize and improve. Thank you again for taking the time to share this — we’re committed to making the experience better.

No way to view solutions

If you don’t know you can’t do anything.
swapbbylswapbbyl

Response from developer

Thanks for the feedback — we’re sorry the solutions weren’t visible or clear. We’re improving access and guidance now. If you can share details here, it would help a lot: https://forms.gle/pYY51qc5irvPoSv59

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FAQ

What is System Design interview prep?

System Design interview prep is an AI-powered simulator designed to help software engineers practice for system design interviews. It offers interactive scenarios and an AI interrogator to challenge your design decisions.

Does System Design interview prep have ads?

Yes, System Design interview prep contains advertisements. As a free app with in-app purchases, ads are included to support its development and availability.

What are the subscription options for System Design interview prep?

System Design interview prep offers several subscription plans for unlimited access, including weekly options at $3.99 and $4.99, monthly options at $6.99 and $12.99, and an annual plan at $99.99 which includes a 7-day free trial.

How does the AI Interrogator work in System Design interview prep?

The AI Interrogator in System Design interview prep acts as an interviewer, challenging your design choices, asking follow-up questions, and probing for weaknesses in your proposed system architecture.

Can I track my progress with System Design interview prep?

Yes, the app provides detailed analytics to track your performance, identify knowledge gaps, and monitor your improvement over time with comprehensive metrics.

What kind of scenarios are available in System Design interview prep?

The app features realistic scenarios covering classic and modern interview questions, such as 'Design a URL Shortener' and 'Design a Social Network,' to prepare you for common interview topics.

How often is System Design interview prep updated?

The latest version of System Design interview prep is 1.0.3, last updated on March 9, 2026. Updates typically focus on improving features and addressing user feedback.

What devices support System Design interview prep?

System Design interview prep is supported on iPhone and iPad devices, making it accessible for users on the Apple ecosystem.