System Design interview prep

AI Simulator for system design

Free · In‑App Purchases · Designed for iPad

ArchSim is the ultimate training ground for software engineers preparing for system design interviews. Forget passive reading—ArchSim puts you in the driver’s seat of a high-stakes engineering simulation with a fast, value-first onboarding and a 60‑second drill preview to get you into the action quickly. Key Features: Interactive War Room: Solve real-world architecture scenarios in a dynamic environment. Define requirements, estimate capacity, and design your system component by component. AI Interrogator: Face off against an intelligent Prep AI that challenges your decisions, asks follow-up questions, and probes for weaknesses in your design. Realistic Scenarios: Tackle classic and modern interview questions like “Design a URL Shortener” and “Design a Social Network.” Perfect for your job search. Daily Drills: Short 5–10 minute practice sessions to build fundamentals, track streaks, and sharpen core skills. Detailed Analytics: Track your performance, identify knowledge gaps, and monitor your improvement over time with comprehensive metrics. Debrief & Learn: Get instant feedback on your design choices and learn best practices for scalability, reliability, and maintainability. Whether you are a junior developer or a staff engineer, ArchSim provides the practice you need to ace your next tech interview and land your dream job. ----------- Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. Terms of Use: https://calico-magnolia-61e.notion.site/archsim-terms-of-use-2c6 Privacy Policy: https://calico-magnolia-61e.notion.site/archsim-privacy-policy-2c

  • 1.0
    out of 5
    2 Ratings

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

The developer, Abdelhak El Moussaoui, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Contact Info
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

  • Seller
    • Abdelhak El Moussaoui
  • Size
    • 93.6 MB
  • Category
    • Education
  • Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    • iPad
      Requires iPadOS 17.6 or later.
    • Mac
      Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.3 or later.
  • Languages
    • English
  • Age Rating
    4+
  • In-App Purchases
    Yes
    • Unlimited access $99.99
    • Unlimited access $12.99
    • Unlimited access $3.99
    • Unlimited access $4.99
    • Unlimited access $6.99
  • Copyright
    • © ArchSim 2025