Lld
Low-Level Design
Easy
Fitness Tracker
Design a Fitness Tracker application that allows users to log workouts and track progress over time. The system must notify users of milestones or suggest workouts when specific goals are reached. Include components for user input, data storage, and analytics.
Key concepts
encapsulationobserverapi design
Practise this out loud — free
Start a mock interview on THIS exact question — a voice AI interviewer opens with it, pushes back like a real onsite, then hands you an instant scorecard.
🎙 Practise this question now