System Design Interview Prep
On Your Phone
Master system design with a structured 5-step evaluation framework. Practice designing real systems like URL shorteners, Twitter, and Uber — right from your phone.
Start with 10 free attempts. No credit card required.
5-Step
Framework
Real
Systems
Mobile
First
System Design Is Hard to Prep For
Most system design resources are blog posts or YouTube videos. There's no interactive, mobile-friendly way to practice.
Passive Learning
Reading blog posts and watching videos doesn't build real design skills. You need active practice.
No Structure
Without a framework, it's hard to know where to start or what a good answer looks like.
Desktop Only
Existing tools require a laptop. No mobile-friendly option exists for practicing system design.
The 5-Step System Design Framework
Every system design problem follows a structured evaluation that mirrors how real interviews work.
Requirements
Gather functional and non-functional requirements. Learn to ask the right questions before designing.
High-Level Design
Sketch the system architecture with key components and data flow between services.
Component Selection
Choose the right databases, caches, message queues, and services for your system.
Scalability
Address bottlenecks, sharding, replication, and load balancing strategies.
Tradeoffs
Analyze CAP theorem, consistency vs availability, and cost tradeoffs in your design.
Design Systems That Actually Get Asked
Practice with the exact types of system design problems you'll face at Google, Amazon, Meta, and other top companies.
URL Shortener
Design a system like TinyURL. Learn about hashing, databases, and handling billions of redirects.
EasySocial Media Feed
Design a system like Twitter. Tackle fan-out, timelines, and real-time updates at scale.
MediumRide-Sharing Platform
Design a system like Uber. Handle real-time matching, geolocation, and surge pricing.
HardChat Application
Design a system like WhatsApp. WebSockets, message queues, and end-to-end encryption.
MediumVideo Streaming
Design a system like Netflix. CDNs, adaptive bitrate streaming, and content delivery.
HardSearch Engine
Design a system like Google Search. Indexing, ranking algorithms, and query processing.
HardComplete Technical Interview Prep
Yeetcode is the only mobile app that covers both DSA and System Design with structured, step-by-step evaluation.
DSA Problems
4-step evaluation for coding problems
System Design
5-step evaluation for architecture problems
Start Practicing System Design
Download Yeetcode and practice system design interviews on your phone. Start with 10 free attempts, no signup required.
10 free attempts • DSA & System Design • No credit card required