System Design interview prep

System Design interview prep



Free

1.0.3
Age Rating
4+
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9+
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
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Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
17+
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

About System Design interview prep

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.

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What's New in the Latest Version 1.0.3

Last updated on Mar 9, 2026
Old Versions
- Faster, value‑first onboarding with clearer messaging
- Daily Drill now stays within the main navigation for a smoother flow
- Advanced architecture analysis
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Version History
1.0.3
Mar 9, 2026
- Faster, value‑first onboarding with clearer messaging
- Daily Drill now stays within the main navigation for a smoother flow
- Advanced architecture analysis

System Design interview prep FAQ

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