Prepfully logo
  • Browse Coaches
  • Login
Back to Interview Questions
iOS System Design

Design a calendar app which can scale to millions of users

iOS Engineer

Spotify

Apple

Strava

Okta

Capital One

Bumble

Did you come across this question in an interview?

  • Design a calendar app which can scale to millions of users
  • Design a corporate calendar app
  • Please implement a UI similar to the iOS calendar app. You need to create a custom layout for the collection view, particularly the frameForCellAtIndexPath method. This method is responsible for calculating the frame for each cell in the collection view.
  • Could you please implement a UI resembling the iOS calendar app?
  • Design the system for the iOS Calendar appI would appreciate it if you could develop a UI that resembles the iOS calendar. Your task is to create a custom layout for the collection view, particularly focusing on the frameForCellAtIndexPath method. This method is responsible for calculating the frame for each cell in the collection view.
  • Design a calendar app for an iPhone
  • How would you go about replicating the iOS calendar's UI and customizing the collection view's cell layout?
  • Describe your methodology for creating a UI comparable to the iOS calendar, focusing on the collection view's cell framing.
  • What approach would you take to develop a user interface similar to the iOS calendar, with a particular emphasis on the collection view cell layout?
  • Implement a UI like the iOS calendar. Implement a custom layout for the collection view specifically the frameForCellAtIndexPath method. (The method that calculates frame for each collection view cell)
Try Our AI Interviewer

Prepare for success with realistic, role-specific interview simulations.

Try AI Interview Now

Interview question asked to iOS Engineers interviewing at Careem, Bumble, Okta and others: Design a calendar app which can scale to millions of users.

  • Company
  • FAQs
  • Contact Us
  • Become An Expert
  • Services
  • Practice Interviews
  • Interview Guides
  • Interview Questions
  • Watch Recorded Interviews
  • Gift sessions
  • AI Interview
  • Social
  • Twitter
  • Facebook
  • LinkedIn
  • YouTube
  • Legal
  • Terms & Conditions
  • Privacy Policy
  • Illustrations by Storyset

© 2025 Prepfully. All rights reserved.

Prepfully logo

Our AI is trained on 10,000+ answers.Login to review your answer.

Not a member yet? Sign up for free.

Design a calendar app which can scale to millions of users

Interview Answer Review Tool

Type or paste your answer below and get a strength-o-meter check.

Your answer

All AI-reviewed answers are published on Prepfully.
Evaluation Metrics

Your answer will be graded on the following metrics:

  • Role relevance
  • Company fit
  • Clarity
  • Communication
  • Problem solving
  • Depth of understanding