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Mobile Dev Interview
FAANG-Level Mobile Prep

System Design Learning Center

Master the key concepts and strategies to ace your system design interview

Common System Design Questions

Design a Mobile Photo Sharing App

Easy35 min
Image processing
Feed algorithms
iOS & Android

Design a Chat Application

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Medium45 min
Real-time messaging
Presence system
Cross-platform considerations

Design a Mobile News Feed

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Medium40 min
Content delivery
Infinite scroll
React Native optimizations

Design a Ride Sharing Service

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Hard55 min
Real-time location
Matching algorithms
Native performance optimization

Design a File Downloader Library

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Medium50 min
Chunked downloads
Background execution
Native & WebView integration

Design a Cache Library for Native Mobile

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Hard55 min
Memory & disk caching
Eviction policies
Swift & Kotlin implementations