Crack MAANG interviews with a plan

Progressive Hints

Stuck? Get up to 3 levels of AI hints — guides you toward the solution without giving it away.

Notes + Code

Write markdown notes and save solutions in Python, JS, Java or C++ — all attached to each problem.

Streak Heatmap

GitHub-style activity heatmap keeps you accountable. Click any day to see exactly what you solved.

Global Search

Cmd+K search across every concept, problem, and your personal notes instantly.

Problem Timer

Per-problem stopwatch so you can track how long you actually spend and improve over time.

Progress Tracking

Visual progress rings per track, completion stats, and an activity feed on your dashboard.

Monaco Code Editor

Full VS Code-style editor with syntax highlighting, auto-indent, and multi-language support per problem.

AI Code Review

Get a MAANG-level code review for any saved solution — time & space complexity, edge cases, and improvement tips.

Custom Problem Lists

Build your own lists or import Blind 75, NeetCode 150, or Striver's SDE Sheet with one click.

AI Interview Grading

End your mock interview and get instant AI feedback graded as Strong Pass, Good, Needs Work, or Not Ready.

ATS Resume Checker

Upload your resume and get an instant ATS score, keyword gap analysis, and AI-powered rewrite suggestions for MAANG roles.

Weak Area Report

Ultra plan: AI analyses your solve history and generates a personalised report highlighting your weakest DSA patterns.

BYOK Support

Bring your own API key from OpenAI, Anthropic (Claude), Gemini, Grok, Groq, or OpenRouter for unlimited AI usage.

Solution History

Every code submission is saved with a timestamp. Review past attempts, track improvement, and compare approaches over time.

Algorithm Visualizer

Step-through animations for 85+ algorithms — arrays, trees, graphs, DP, and more. Custom input support and speed control.

Pick a track

Start with DSA, System Design, or Frontend — whichever matches your upcoming interview.

Study the concepts

Read pattern guides with complexity analysis, templates, MAANG-specific notes, and step-through algorithm visualizations per topic.

Solve & review

Work through problems, write notes, save your code, and use AI hints when you get stuck.

Yes. The Free tier includes 3 AI mock interviews, 5 code reviews, 10 concept practice sessions, and 3 resume checks per month at no cost. BYOK (Bring Your Own Key) gives unlimited access if you supply your own API key from OpenAI, Anthropic, Gemini, Grok, Groq, or OpenRouter.

DevSwitch covers four tracks: DSA (Data Structures & Algorithms) with 14 structured topic modules, System Design covering scalability and distributed systems, Frontend Engineering with React and browser internals, and Behavioral interviews.

Yes. BYOK mode lets you plug in an API key from OpenAI (GPT-4, o3), Anthropic (Claude), Google Gemini, Grok (xAI), Groq, or OpenRouter. Your key is encrypted in the database and used only for your AI requests.

Arrays, Hashing, Linked Lists, Stacks & Queues, Binary Search, Trees, Heaps, Graphs, Dynamic Programming, Tries, Backtracking, Intervals, Bit Manipulation, and Math — 14 modules in total, each with concept guides, code templates, and curated LeetCode problems.

Choose a company (Google, Meta, Amazon, etc.), difficulty level, and track. An AI interviewer runs a real-time chat interview, asks follow-up questions, and generates a graded feedback report at the end — Strong Pass, Good, Needs Work, or Not Ready.