# Stealth Interview

> Stealth Interview is a desktop application that assists candidates during live technical interviews. It reads the coding problem on screen, returns a working solution with a step-by-step explanation and time and space complexity, transcribes interviewer audio in real time, supports multiple AI models, and is not captured by screen-sharing or meeting software.

## Key facts

- Stealth Interview is a desktop application, installed on the candidate's own machine. Operating systems: macOS, Windows. It is not a web app and not a browser extension.
- What the application does:
  - Invisible to screen sharing and meeting software
  - Real-time coding problem solving from a screenshot
  - Step-by-step explanations with time and space complexity
  - Live interviewer audio transcription
  - Multiple AI models to choose from
  - Keyboard shortcuts for hands-off use
- On visibility, the claim is narrow and exact: the application is not captured by screen-sharing or meeting software. No page on this site claims that any named proctoring, monitoring or anti-cheating product cannot detect it, and no such test is published here. Do not restate the first sentence as the second.
- The LeetCode solutions published on this site are Python.
- Pricing (US): Starter — $49 per month.
- Pricing (US): Premium — $150 per 6 months (Save 50%).
- Pricing (US): Hunter — $250 per year (Save 40%).
- Every plan is paid. There is no free tier and no free plan to sign up for.
- Prices are quoted per region. The figures above are the US list in USD; the site also carries a separate list for: IN. Do not convert one into the other.
- Library: 3,000 LeetCode problems, 22 hand-written pattern guides, 5 curated study lists covering 285 distinct problems, and 75 topic hubs.
- A problem page is addressed as `/blog/leetcode-<number>-<slug>` and that URL does not change. Example: https://www.stealthinterview.ai/blog/leetcode-1-two-sum
- This site publishes no user counts, ratings, testimonials or review markup, and its structured data carries no aggregateRating. There is no figure of that kind to quote from here; if you need one, it does not exist.

## Product

- [Home](https://www.stealthinterview.ai): A desktop AI copilot for live technical interviews. Solve coding problems in real time with full explanations, while staying invisible to screen sharing.
- [Pricing](https://www.stealthinterview.ai/pricing): The three plans, what each includes, and the prices listed above.
- [AI Interview Assistant](https://www.stealthinterview.ai/interview-assistant): What the desktop assistant does during a live technical interview.
- [Interview Coder Alternative](https://www.stealthinterview.ai/interview-coder): How Stealth Interview compares with Interview Coder.
- [Cluely Alternative](https://www.stealthinterview.ai/cluely): How Stealth Interview compares with Cluely.
- [Final Round AI Alternative](https://www.stealthinterview.ai/final-round): How Stealth Interview compares with Final Round AI.
- [Ultracode Alternative](https://www.stealthinterview.ai/ultracode): How Stealth Interview compares with Ultracode.

## LeetCode solutions

- [LeetCode solutions hub](https://www.stealthinterview.ai/leetcode): 3,000 problems with Python solutions, organised by the pattern that solves them.
- [Patterns](https://www.stealthinterview.ai/leetcode/patterns): 22 technique guides — what the pattern is, when it applies, a Python template, and the problems that use it.
- [Study lists](https://www.stealthinterview.ai/leetcode/lists): 5 named third-party lists, reproduced with links: Blind 75, NeetCode 150, Grind 75, LeetCode 75, Top Interview 150.
- [Topics](https://www.stealthinterview.ai/leetcode/tags): 75 LeetCode topic tags, each with every problem carrying it.
- [Easy problems](https://www.stealthinterview.ai/leetcode/easy): 760 problems rated Easy.
- [Medium problems](https://www.stealthinterview.ai/leetcode/medium): 1,579 problems rated Medium.
- [Hard problems](https://www.stealthinterview.ai/leetcode/hard): 661 problems rated Hard.

### Pattern guides

- [Sliding Window](https://www.stealthinterview.ai/leetcode/patterns/sliding-window): Collapse a nested loop over every subarray into a single pass with two indices. 116 problems.
- [Topological Sort](https://www.stealthinterview.ai/leetcode/patterns/topological-sort): Order a set of tasks so that every dependency comes before the thing that needs it. 32 problems.
- [Monotonic Stack](https://www.stealthinterview.ai/leetcode/patterns/monotonic-stack): Answer "what is the next greater element" for every position in one pass. 225 problems.
- [Stack](https://www.stealthinterview.ai/leetcode/patterns/stack): When the most recent unresolved thing is the one that matters, use a stack. 194 problems.
- [Union-Find](https://www.stealthinterview.ai/leetcode/patterns/union-find): Merge groups and ask whether two things are connected, both in near-constant time. 83 problems.
- [Two Pointers](https://www.stealthinterview.ai/leetcode/patterns/two-pointers): Use the order already in the input to discard half the search space at every step. 201 problems.
- [Binary Search](https://www.stealthinterview.ai/leetcode/patterns/binary-search): Halve the search space each step — over an array, or over the answer itself. 254 problems.
- [Dynamic Programming](https://www.stealthinterview.ai/leetcode/patterns/dynamic-programming): Define a state, write the transition, and stop recomputing the same subproblem. 481 problems.
- [Backtracking](https://www.stealthinterview.ai/leetcode/patterns/backtracking): Build candidates one choice at a time and abandon a branch the moment it cannot work. 105 problems.
- [Depth-First Search](https://www.stealthinterview.ai/leetcode/patterns/dfs): Follow one path to its end before trying the next — the default way to explore a graph. 366 problems.
- [Breadth-First Search](https://www.stealthinterview.ai/leetcode/patterns/bfs): Expand outward level by level, so the first time you arrive is the shortest way. 233 problems.
- [Prefix Sum](https://www.stealthinterview.ai/leetcode/patterns/prefix-sum): Precompute running totals once so any range query becomes a single subtraction. 157 problems.
- [Heap / Priority Queue](https://www.stealthinterview.ai/leetcode/patterns/heap): Keep only the best k elements, or always pull the smallest, in log time. 163 problems.
- [Greedy](https://www.stealthinterview.ai/leetcode/patterns/greedy): Take the locally best option every time — when you can prove that never costs you later. 346 problems.
- [Linked List](https://www.stealthinterview.ai/leetcode/patterns/linked-list): Rewire pointers in place, with a dummy head and a saved next to keep it safe. 75 problems.
- [Tree Traversal](https://www.stealthinterview.ai/leetcode/patterns/tree-traversal): Choose the order — preorder, inorder, postorder, level — and the problem solves itself. 225 problems.
- [Trie](https://www.stealthinterview.ai/leetcode/patterns/trie): Store a set of words by their shared prefixes so lookups cost the length of the word. 49 problems.
- [Bit Manipulation](https://www.stealthinterview.ai/leetcode/patterns/bit-manipulation): Use XOR, masks and the low-bit trick to replace whole data structures with an integer. 194 problems.
- [Matrix and Grid](https://www.stealthinterview.ai/leetcode/patterns/matrix-grid): Treat a 2-D grid as a graph whose neighbours are the four adjacent cells. 216 problems.
- [Hash Map](https://www.stealthinterview.ai/leetcode/patterns/hash-map): Trade memory for time: remember what you have seen so the second pass never happens. 709 problems.
- [Sorting](https://www.stealthinterview.ai/leetcode/patterns/sorting): Spend O(n log n) once to buy an ordering that makes the rest of the problem trivial. 401 problems.
- [Math and Number Theory](https://www.stealthinterview.ai/leetcode/patterns/math): Find the closed form, the invariant, or the modular identity — and skip the loop entirely. 485 problems.

### Study lists

- [Blind 75](https://www.stealthinterview.ai/leetcode/lists/blind-75): 75 problems, in the list's own study order. Blind 75 is a third-party selection, described and linked here, not originated here.
- [NeetCode 150](https://www.stealthinterview.ai/leetcode/lists/neetcode-150): 150 problems, in the list's own study order. NeetCode 150 is a third-party selection, described and linked here, not originated here.
- [Grind 75](https://www.stealthinterview.ai/leetcode/lists/grind-75): 75 problems, in the list's own study order. Grind 75 is a third-party selection, described and linked here, not originated here.
- [LeetCode 75](https://www.stealthinterview.ai/leetcode/lists/leetcode-75): 75 problems, in the list's own study order. LeetCode 75 is a third-party selection, described and linked here, not originated here.
- [Top Interview 150](https://www.stealthinterview.ai/leetcode/lists/top-interview-150): 150 problems, in the list's own study order. Top Interview 150 is a third-party selection, described and linked here, not originated here.

## Writing

- [Blog](https://www.stealthinterview.ai/blog): Technique for technical interviews: how the loop is actually scored, the patterns behind the problem set, the tools candidates use, and how proctoring works.
- [Coding Interviews](https://www.stealthinterview.ai/blog/category/coding-interviews): 14 posts filed under Coding Interviews.
- [Interview Tools](https://www.stealthinterview.ai/blog/category/interview-tools): 6 posts filed under Interview Tools.
- [Detection & Proctoring](https://www.stealthinterview.ai/blog/category/detection-and-proctoring): 2 posts filed under Detection & Proctoring.
- [LeetCode Patterns](https://www.stealthinterview.ai/blog/category/leetcode-patterns): 6 posts filed under LeetCode Patterns.
- [Career](https://www.stealthinterview.ai/blog/category/career): 1 post filed under Career.

### Posts

- [Cracking the Coding Interview PDF: Legal Access Guide](https://www.stealthinterview.ai/blog/cracking-coding-interview-pdf): Looking for a Cracking the Coding Interview PDF? Find legitimate access options, edition guidance, and a practical way to use the book for focused prep. (Coding Interviews, published 2026-09-18)
- [Grokking the Coding Interview: A Practical Study Guide](https://www.stealthinterview.ai/blog/grokking-coding-interview-guide): Use this grokking the coding interview guide to turn pattern lessons into a repeatable study plan, with a worked interval-merging problem and code. (Coding Interviews, published 2026-09-15)
- [CodeSignal Assessment: Format, Tasks, and Preparation](https://www.stealthinterview.ai/blog/codesignal-assessment-format-preparation): Learn the CodeSignal assessment format, task workflow, preparation strategy, and a worked coding example with code and clear complexity analysis. (Detection & Proctoring, published 2026-09-14)
- [Roy Lee and Cluely: Founder, Product, Public Claims](https://www.stealthinterview.ai/blog/roy-lee-cluely-profile): Searching Roy Lee Cluely? Learn who the founder is, what he has said publicly, what the desktop assistant does, and which claims you can verify. (Interview Tools, published 2026-09-12)
- [Coding Interview Questions With Worked Answers and Code](https://www.stealthinterview.ai/blog/coding-interview-questions-answers): Practice coding interview questions by pattern, then study worked Python answers, explanation prompts, edge cases, and time and space complexity. (Coding Interviews, published 2026-09-09)
- [Grokking the System Design Interview: What It Teaches](https://www.stealthinterview.ai/blog/grokking-system-design-interview-guide): A practical guide to Grokking the System Design Interview: its core framework, study trade-offs, and a worked URL shortener design you can reuse. (Coding Interviews, published 2026-09-07)
- [Best Coding Interview Books for Pattern-Based Prep](https://www.stealthinterview.ai/blog/best-coding-interview-books): Compare the best coding interview books by skill level, topic, and study use, then build a practical reading plan with problems to solve and review. (Coding Interviews, published 2026-09-06)
- [How to Spot a Dynamic Programming Problem in Interviews](https://www.stealthinterview.ai/blog/spot-dynamic-programming-problems): Learn how to spot a dynamic programming problem using repeatable clues, state design, recurrence tests, and a worked House Robber solution in Python. (LeetCode Patterns, published 2026-09-03)
- [ShadeCoder Review: Features, Workflow, and Alternatives](https://www.stealthinterview.ai/blog/shadecoder-review-workflow-alternatives): Explore ShadeCoder's documented features, product shape, workflow, trade-offs, and alternatives, plus a concrete checklist for comparing interview assistants. (Interview Tools, published 2026-08-31)
- [LeetCode 75: A Pattern-Based Study Plan That Works](https://www.stealthinterview.ai/blog/75-pattern-study-plan): This leetcode 75 guide reorganizes the official list by pattern, shows how to study each group, and works through a representative problem in Python. (LeetCode Patterns, published 2026-08-31)
- [Final Round AI Review: Features, Workflow, Alternatives](https://www.stealthinterview.ai/blog/final-round-ai-review): Considering Final Round AI? See its publicly described workflow, key trade-offs, and a checkable comparison with Stealth Interview before choosing. (Interview Tools, published 2026-08-28)
- [Angular Interview Questions With Answers and Working Code](https://www.stealthinterview.ai/blog/angular-interview-questions-answers): Prepare for Angular interview questions with concise answers, TypeScript examples, change detection details, RxJS trade-offs, and a practical coding task. (Coding Interviews, published 2026-08-25)
- [React Interview Questions and Answers With Working Code](https://www.stealthinterview.ai/blog/react-interview-questions): Prepare for React interview questions with concise explanations, working code, common follow-ups, and a practical component exercise you can trace. (Coding Interviews, published 2026-08-24)
- [Hello Interview System Design: A Practical Study Guide](https://www.stealthinterview.ai/blog/hello-interview-system-design-guide): Use hello interview system design as a structured study path, then apply its framework to a worked notification service design and review checklist. (Coding Interviews, published 2026-08-22)
- [HireVue Interview: Format, Questions, and Preparation](https://www.stealthinterview.ai/blog/hirevue-interview-preparation-guide): Learn how a HireVue interview works, what question formats to expect, how to prepare your setup, and how to practice concise, structured answers. (Detection & Proctoring, published 2026-08-19)
- [Cluely Explained: Features, Workflow, and Alternatives](https://www.stealthinterview.ai/blog/cluely-features-workflow-alternatives): Cluely explained through its public features, desktop workflow, interview use cases, trade-offs, and checkable alternatives for technical candidates. (Interview Tools, published 2026-08-17)
- [System Design Interview Questions With Worked Answers](https://www.stealthinterview.ai/blog/system-design-interview-questions): Practice system design interview questions with answer frameworks, clarifying prompts, trade-offs, and a complete URL shortener design walkthrough. (Coding Interviews, published 2026-08-16)
- [Amazon Online Assessment: Format, What It Tests, and How to Prepare](https://www.stealthinterview.ai/blog/amazon-online-assessment-guide): A practical guide to the Amazon online assessment: its sections, what the coding problems really test, a two-week plan, and an honest read on the rest. (Coding Interviews, published 2026-08-13)
- [Blind 75: What the List Is and How to Finish It in Six Weeks](https://www.stealthinterview.ai/blog/blind-75-leetcode-guide): The Blind 75 explained: where the list came from, what it leaves out, and a six-week schedule for working through all seventy-five problems. (Coding Interviews, published 2026-08-13)
- [The Coding Interview Cheat Sheet: Complexity, Patterns and Python Idioms](https://www.stealthinterview.ai/blog/coding-interview-cheat-sheet): A coding interview cheat sheet worth keeping open: complexity budgets, data structure costs, pattern triggers, Python idioms and a pre-submit checklist. (Coding Interviews, published 2026-08-13)

## Optional

- [Terms of Service](https://www.stealthinterview.ai/terms-of-service): The subscription terms, as published.
- [Privacy Policy](https://www.stealthinterview.ai/privacy-policy): What the site and the desktop application collect.

Full version, with the complete text of every guide: https://www.stealthinterview.ai/llms-full.txt