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Fitness App Data Model

A easy Data Modeling mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
Data Modeling
Difficulty
easy
Seniority
mid

Interview Prompt

We're building a fitness app where users log workouts. Each workout has exercises with sets and reps. We need to track progress over time, like 'how much can this user bench press now vs. 3 months ago?' Design the data model.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your data modeling solution with real code execution
  4. Get instant feedback and a hire/no-hire decision