Apple Interview Questions (2026)

54 questions across 5 categories ยท Updated April 2026

Algorithms

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Game of Life

Medium

Find K Pairs with Smallest Sums

Medium

Container With Most Water

Medium

Pascals Triangle

Easy

Valid Parentheses

Easy

Decode String

Medium

Validate Binary Search Tree (BST)

Medium

Sudoku Solver

Hard

Number of Connected Components in an Undirected Graph

Medium

Number of Boomerangs

Medium

Behavioral

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Your Career Path Drivers

Easy

When You Missed an Important Detail

Easy

Managing Personal Development

Easy

Advocating for the User

Medium

Learning from Industry Trends

Easy

Working with a Minimalist Mindset

Medium

Tell me about yourself.

Easy

Experience with Data Security

Medium

Your Personal Development Plan

Easy

Teaching a Technical Skill

Easy

Experience with Cross-Functional Teams

Medium

Data Structures

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Balanced Parentheses (Stack)

Easy

Implement a Min Stack

Medium

Implement a Circular Buffer/Ring Buffer

Medium

Lowest Common Ancestor of a Binary Tree

Medium

Lowest Common Ancestor of a BST

Easy

Design a Simple LFU Cache (Conceptual)

Hard

Implement a Dynamic Multiset/Bag

Medium

Time-Based Key-Value Store

Medium

Implement a Map with Time Expiration (Heap/Set)

Hard

Design a Calendar Scheduling System (Interval Tree)

Hard

Intersection of Two Linked Lists

Easy

Product Strategy

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Design a Product for Blind Users

Medium

Should Apple build a dedicated Gaming Console?

Hard

Should Apple design its own electric car?

Hard

Trade-offs: Feature Parity vs. Native Experience

Medium

Product Strategy for a VR/AR App Store

Hard

How to Handle a Negative PR Crisis (Product Response)

Medium

Improve iOS App Store Search Relevancy

Medium

Product Vision for the 'Wallet' Feature on iOS

Hard

Metrics for Measuring User Trust

Medium

Design a Feature for Cross-Platform Continuity

Medium

How to Measure Feature Usage (Instrumentation)

Easy

System Design

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Discuss Serverless Functions vs. Containers (FaaS vs. CaaS)

Easy

Design an API Caching Layer

Medium

Design a User Login and Authentication Service

Easy

Design a System for Feature Flags/Toggles

Medium

Design a System for Geo-Distributed Data Storage

Hard

Design an Asynchronous Task Processing System

Medium

Design a Geo-Spatial Indexing System

Medium

Design a System for Storing User Preferences

Easy

Design a System for Real-Time Facial Recognition

Hard

Design a Telemetry and Crash Reporting System

Medium

Design a Serverless Real-time Data Pipeline

Medium

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