Your Real-Time AI Interview Assistant
Real-time, undetectable AI answers tailored to your resume and target role — through every live interview round.
You screen-sharing on Zoom
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Works with Every Platform
Undetectable, Tested Daily,
on every Interview App & Proctored Exam
001
Microsoft Teams
Undetectable
002
Zoom
Undetectable
003
Google Meet
Undetectable
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Amazon Chime
Undetectable
005
Cisco Webex
Undetectable
006
Lark/Feishu
Undetectable
007
HackerRank
Undetectable
008
CoderPad
Undetectable
009
Codility
Undetectable
Capabilities
What you get inside PhantomCodeAI
Beyond the invisible overlay — the features that actually move the needle during a live round.
91 Languages & Accents
Live interviewer audio transcribed and answered in the same language across 91 Languages & Accents — Arabic, Bengali, Cantonese, English, French, German, Hindi, Italian, Japanese, Korean, Mandarin, Marathi, Portuguese, Russian, Spanish, Tamil, Turkish, Urdu, Vietnamese, and more. Bilingual modes (Arabic+English, Mandarin+English, Tamil+English, Malay+English) handle code-switching rounds.
Two AI thinking modes
Toggle Fast Think for under-pressure DSA questions where you need an answer in seconds, or Deep Think for system design and tricky algorithms where reasoning depth matters more than latency. Switch mid-round in one click.
11 programming languages
Solutions in Python, Java, JavaScript, TypeScript, C++, C#, Go, Rust, Ruby, Swift, or Kotlin — pick the language per-session and the AI matches your idioms, standard library, and naming conventions.
Resume-aware answers
Upload your resume once. PhantomCodeAI parses it and tailors behavioral answers, 'tell me about yourself' framing, and project-deep-dive responses to your actual experience instead of generic templates.
Profile-aware tone
Tell the app whether you're a student, junior, mid-level, or senior engineer — and which company you're targeting. The AI shifts code style, depth of explanation, and behavioral framing accordingly.
Custom Prompt Manager
Save your own system prompts — 'always answer in Java with comments', 'lead with complexity analysis', 'use Indian English idioms' — and switch between them per round. No more retyping the same context every interview.
How candidates actually use it
Two ways to use PhantomCodeAI
One app, two interview formats. Pick the mode that matches the round you're in — the keyboard shortcut decides.
Mode 1
Live Interview
Real-time coding rounds with a human interviewer on Zoom, Meet, or Teams. The AI listens to both sides and answers in your spoken language.
- Two-way audio transcription — interviewer + you, streamed into a WhatsApp-style chat.
- Same-language replies across 91 Languages & Accents, plus bilingual modes.
- Deep Think for system design, Fast Think for quick DSA — switch mid-round.
Best for: DSA · system design · behavioral · take-home walkthroughs
Mode 2
Online Round
Async coding tests, take-homes, or proctored assessments where no one is speaking. Capture the problem on screen, get the solution.
- Screenshot the problem with ⌘ + H — invisible to the proctor and screen share.
- Optimal solution in your chosen language, with time/space complexity and edge cases.
- Iterate with follow-up screenshots or text — the AI keeps the prior context across turns.
Best for: HackerRank · CodeSignal · CoderPad assessments · LeetCode practice
Built for
The candidate situations we’re shaped around
🇪🇺
For European engineers →
Cross-time-zone US loops, multilingual code-switching, GDPR-aware data posture. Built for engineers in London, Berlin, Amsterdam, and the rest of the EU.
🔁
Coming back after a layoff →
Rebuild interview muscle without burning three months on LeetCode. Real-time backstop while reflexes return.
🎯
Prepping for FAANG loops →
Bar Raiser, Leadership Principles, structured loops, senior+ system design — per-company breakdowns.
Testimonials
What Our Users Say?
See what real candidates say after using PhantomCodeAI in their interviews.
PhantomCodeAI is actually my buddy, I got accepted as SDE intern in product based company.
Aakash Reddy
SDE Intern
The HLD round was the one I was dreading. PhantomCodeAI walked me through the design while I just talked — load balancer, sharding, cache layer, everything. Amazon offer two weeks later.
Vikram Iyer
Senior Software Engineer
I did the interview and got the job because of this app! It helped me so much. It gave me answers and I didn’t get caught. Yay!
Karan Verma
SDE Intern
Did three Zoom rounds and one Google Meet with it running the whole time. Doesn’t show up on screen-share at all. By round four I wasn’t even nervous.
Mei Tanaka
Frontend Engineer
PhantomCodeAI is actually my buddy, I got accepted as SDE intern in product based company.
Aakash Reddy
SDE Intern
The HLD round was the one I was dreading. PhantomCodeAI walked me through the design while I just talked — load balancer, sharding, cache layer, everything. Amazon offer two weeks later.
Vikram Iyer
Senior Software Engineer
I did the interview and got the job because of this app! It helped me so much. It gave me answers and I didn’t get caught. Yay!
Karan Verma
SDE Intern
Did three Zoom rounds and one Google Meet with it running the whole time. Doesn’t show up on screen-share at all. By round four I wasn’t even nervous.
Mei Tanaka
Frontend Engineer
This app is AMAZING! It gave me all the answers, and I didn’t even get caught! It’s like a cheat code for interviews!
Astha Gaur
SDE Intern
Everyone sleeps on the behavioral round. I used this for my Amazon Leadership Principles interview and it fed me clean STAR-format answers in real time. Bar Raiser cleared.
Rohit Nair
SDE 2
I got the job, thank you sooooo much
Sanya Mehta
Software Development Engineer 2
My recruiter started in German and switched to English halfway through. PhantomCodeAI just kept up the whole time, didn’t even have to touch it. Didn’t think that would work this smoothly.
Lina Müller
Backend Engineer
This app is AMAZING! It gave me all the answers, and I didn’t even get caught! It’s like a cheat code for interviews!
Astha Gaur
SDE Intern
Everyone sleeps on the behavioral round. I used this for my Amazon Leadership Principles interview and it fed me clean STAR-format answers in real time. Bar Raiser cleared.
Rohit Nair
SDE 2
I got the job, thank you sooooo much
Sanya Mehta
Software Development Engineer 2
My recruiter started in German and switched to English halfway through. PhantomCodeAI just kept up the whole time, didn’t even have to touch it. Didn’t think that would work this smoothly.
Lina Müller
Backend Engineer
Hit the hotkey on a hard CodeSignal problem and got the optimal solution back with the complexity analysis. Cleared the OA, got the onsite. Honestly unreal.
Jordan Bennett
New Grad SWE
This app is soooo cool! It helped me get all the answers during my interview. I didn’t even need to try hard. It was like magic!
Aryan Sharma
Software Engineer 2
I used it, and it was awesome. Thank you PhantomCodeAI. Loved it.
Ananya Singh
SDE Intern
This app is totally worth it. I used it and it was really easy to get through the interview.
Ishaan Joshi
Software Developer
Hit the hotkey on a hard CodeSignal problem and got the optimal solution back with the complexity analysis. Cleared the OA, got the onsite. Honestly unreal.
Jordan Bennett
New Grad SWE
This app is soooo cool! It helped me get all the answers during my interview. I didn’t even need to try hard. It was like magic!
Aryan Sharma
Software Engineer 2
I used it, and it was awesome. Thank you PhantomCodeAI. Loved it.
Ananya Singh
SDE Intern
This app is totally worth it. I used it and it was really easy to get through the interview.
Ishaan Joshi
Software Developer
The Proof Is in the Comparison
Compare side-by-side and find out why PhantomCodeAI stays invisible where others fail.
Undetectability features(hover for info)
🎙️Supports Audio
Captures and transcribes interviewer audio in real-time, enabling the AI to understand spoken questions during live interviews.
📸Support Screenshot
Take and share screenshots directly to the AI and get response faster.
💬Support Text
Dedicated text-based support channel for quick help with setup, troubleshooting, and feature questions.
📲Chat like WhatsApp
Real-time chat support with a familiar WhatsApp-like interface for instant communication with the AI.
🖥️Invisible in Dock
The application doesn't appear in your dock/taskbar, preventing interviewers from seeing it during screen shares.
📡Invisible to Screen Share
Application remains hidden when sharing your screen, ensuring interviewers can't detect the application.
📌Invisible to Tray
No system tray icon is displayed, eliminating another potential detection point during interviews.
📊Invisible to System/Activity Monitor
Process name is disguised to avoid detection if an interviewer checks your running applications or system monitor.
🖱️Click-Through Undetectability
The overlay allows clicks to pass through to underlying windows, preventing accidental interactions that could reveal its presence.
🛡️Hasn't Been Caught
Zero documented cases of users being detected or flagged when using this tool properly during technical interviews.
💰Best Price
Unlimited access to all features and AI assistance at the most competitive price.
🌐Undetectable by Browser
Operates outside the browser environment, avoiding detection by browser extensions or interview platform monitoring scripts.
✅Has Real Proof From Real Users
Verified testimonials and case studies from real users who successfully passed interviews using this tool.
PhantomCodeAIReady to Ace Your Next Interview?
Download now — invisible, undetectable, and works on every platform. Plans start at $19.
How to Use PhantomCodeAI
Get started in under 2 minutes. Need help? Visit our help center
Get Started
Subscribe to PhantomCodeAI
Sign up and get instant access. No complex setup, no hassle — just download, log in, and you're ready to go.
Start Interview
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Start Online RoundOnline
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Hide
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Interview
Listening
Think
Given an array of integers, find two numbers that add up to a target sum. Return their indices.
Here's an optimal O(n) solution using a hash map:
def two_sum(nums, target):
seen = {}
for i, num in enumerate(nums):
complement = target - num
if complement in seen:
return [seen[complement], i]
seen[num] = i
Time: O(n) | Space: O(n)
Ask a follow up question...
Start Over⌘G
Think & Crack⌘↵
Capture the Problem
Screenshot, speak, or let your interviewer speak
Press ⌘ + H to invisibly capture the question, type it out, or just let the AI listen to your interviewer in real-time. However the problem reaches you, we've got it covered.
00:00
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⌘B
Interview
Listening
Think
Listening for audio...
Ask a follow up question...
Start Over⌘G
Think & Crack⌘↵
Solve
Get your solutions
Press ⌘ + ↵ and get a complete solution with step-by-step explanations. Read the thoughts aloud to sound natural, or use them as a guide while you code.
05:30
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Think
Problem Statement
Extracting problem statement...
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Extracting...
Debug and Optimize
Chat, debug, and iterate
Need to debug or ask a follow-up? Chat just like WhatsApp — take a screenshot, type your question, or simply speak. The AI listens to both you and your interviewer, so it always has the full context.
07:15
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Listening
Think
What I Changed (Read these aloud)
The current solution uses nested loops, resulting in O(n²) time complexity.
We can optimize this by using a hash map to store previously seen numbers.
This reduces time complexity to O(n) with O(n) space trade-off.
Solution
def twoSum(nums: List[int], target: int) -> List[int]:
seen = {} # Value -> Index mapping
for i, num in enumerate(nums):
complement = target - num
if complement in seen:
return [seen[complement], i]
seen[num] = i
return [] # No solution found
Complexity
Time Complexity: O(n)
Space Complexity: O(n)
Ask a follow up question...
Start Over⌘G
Think & Crack⌘↵
Customize
Your prompts, your way
Use the built-in Prompt Manager to customize how the AI responds. Pick from ready-made templates like Code-First or Explain-First, or create your own to match your style and interview strategy.
Prompts Manager
Code-FirstActive
Demo
Explain-First
Demo
My Custom Prompt
Custom
10/60
Code-First
Demo template is read-only. Create a new prompt to customize.
159/1500
Prioritize step-by-step fixes and runnable snippets; assume tight interview timing; avoid long prose; flag risky approaches and give clean diff-style guidance.
Prioritize step-by-step fixes and runnable snippets based on the context.
Common Questions
Everything you need to know about PhantomCodeAI.
- PhantomCodeAI is rated the best AI tool for interview preparation and the best AI tool for interview questions and answers — 4.8★ from 12,000 reviews, trusted by 5M+ users across 80+ countries. Unlike generic chatbots, it is a purpose-built AI interview app and video interview software that handles coding, system design, SQL, behavioral, and HR rounds — with an AI voice transcription layer that listens to your interviewer live and replies in a WhatsApp-style chat. It is the best AI tool for interview whether you are facing computer-assisted interviewing on HackerRank/CodeSignal or live video interviews on Zoom, Google Meet, and Microsoft Teams.
- PhantomCodeAI is a strong alternative to Interview Coder (interview coder free / interview coder io), First Round AI, and LeetCode AI assistant tools because it is the only all-in-one AI interview copilot covering coding, system design, SQL, behavioral, and online assessments inside a single undetectable desktop overlay. Where Interview Coder focuses narrowly on coding screens and First Round AI on behavioral practice, PhantomCodeAI does both — plus live video interviews and HireVue-style asynchronous video interview software rounds. For HireVue interview questions specifically, PhantomCodeAI scaffolds STAR-format answers tailored to your resume, target role, and target company. Most users switching from Interview Coder or a LeetCode AI assistant cite our real-time interviewer-audio transcription and screen-share invisibility as the deciding factors.
- PhantomCodeAI is the real-time, all-in-one AI interview copilot for software engineers. The desktop app (macOS and Windows) listens to your interviewer live and helps across every kind of interview — coding (DSA, LeetCode, system design, SQL), behavioral, and online assessments on HackerRank, CodeSignal, CoderPad, Zoom, Google Meet, and Microsoft Teams — with an undetectable overlay that does not appear on screen-share.
- PhantomCodeAI runs as an invisible desktop overlay on macOS and Windows during your interview. In Online Interview Mode it transcribes the interviewer's audio in real time and answers in a chat panel; in Online Round Mode you press a global hotkey to capture the on-screen problem via screenshot and the AI streams back an optimal solution with approach, code, and time/space complexity analysis.
- PhantomCodeAI helps with every kind of software-engineer interview — coding rounds (DSA, LeetCode-style problems, system design, SQL), online assessments on HackerRank, CodeSignal, CoderPad, and HackerEarth, and live behavioral and HR rounds on Zoom, Google Meet, and Microsoft Teams.
- Yes. PhantomCodeAI is the #1 all-in-one AI interview copilot for software engineers, with 5M+ users across 80+ countries having powered 9M+ interviews and secured 146K+ jobs. It covers interview preparation, real-time live assistance, and multi-modal problem capture (interviewer-audio transcription plus screenshot hotkey) inside a single desktop app, so you do not need separate tools for coding, system design, behavioral, and online assessments.
- PhantomCodeAI is designed to be undetectable on screen-share, screen-recording software, and proctoring tools on Zoom, Google Meet, Microsoft Teams, HackerRank, CodeSignal, and LeetCode. It runs as an invisible desktop overlay that does not appear in the dock, taskbar, or Activity Monitor, and it does not block your mouse from reaching the editor or browser behind it.
- PhantomCodeAI is built to be completely invisible:
- • Hidden from all screen-sharing and proctoring tools — no one sees the app but you
- • Natural-sounding thoughts you can read aloud to explain your approach confidently
- • Move the app over your code with keyboard shortcuts so your eyes never leave the screen
- • Instantly show or hide the app without changing your active tab or cursor position
- PhantomCodeAI is a native desktop overlay that stays invisible on screen-share, while ChatGPT runs in a browser tab visible to anyone you screen-share with. PhantomCodeAI also captures problems via global hotkey and live interviewer audio instead of forcing you to type or paste, which is faster under interview time pressure, and it is purpose-built for interview workflows rather than general chat.
- PhantomCodeAI is available for macOS (Apple Silicon M1, M2, M3, M4, and Intel) and Windows 10 and 11. It is a native desktop application — not a browser extension — so it works alongside any browser or video-calling app, including HackerRank, CodeSignal, LeetCode, CoderPad, Zoom, Google Meet, and Microsoft Teams.
- PhantomCodeAI generates solutions in 11 programming languages: Python, Java, JavaScript, TypeScript, C++, C#, Go, Rust, Ruby, Swift, and Kotlin. You set your preferred language in settings and the AI returns code in that language for every round.
- PhantomCodeAI transcribes interviewer audio and replies in the same spoken language across 50+ spoken languages (91 languages & accents) — including Arabic, Bengali, Cantonese, English, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Malay, Mandarin, Marathi, Persian, Polish, Portuguese, Russian, Spanish, Tagalog, Tamil, Thai, Turkish, Urdu, and Vietnamese. Bilingual modes (Arabic+English, Mandarin+English, Tamil+English, Malay+English) are also supported for code-switching rounds. The language is selected per-session on the Interview Details screen.
- PhantomCodeAI transcribes interviewer audio in real time during live video calls and streams answers in a WhatsApp-style chat. Both interviewer and interviewee audio are captured so the AI has full context across coding, system-design, and behavioral rounds.
- PhantomCodeAI handles system design (HLD and LLD), database design, SQL, and behavioral / HR rounds. For design questions it walks through key concepts, the design step-by-step, and trade-offs; for behavioral questions it scaffolds STAR-format responses tailored to your resume, target role, and target company.
- PhantomCodeAI works on Zoom, Google Meet, Microsoft Teams, and Discord — the overlay is excluded from those apps' screen-share streams, so the interviewer sees only your editor or browser. Browser-based screen recording (OBS, Chrome extensions) and proctoring on HackerRank, CodeSignal, and LeetCode also do not capture it.
- Absolutely. Whether you're a beginner or a senior engineer, the AI adapts to your level and provides solutions with clear explanations you can follow along with.
- PhantomCodeAI is trusted by 5M+ software engineers, students, and job-seekers across 80+ countries, and has powered 9M+ interviews and secured 146K+ jobs to date. Users range from first-time interviewees to senior engineers using it for system-design rounds and lateral moves.
- PhantomCodeAI users prepare for and interview at FAANG and other top tech companies — including Google, Meta, Amazon, Apple, Netflix, Microsoft, Stripe, Airbnb, Uber, NVIDIA, OpenAI, Tesla, Adobe, Salesforce, and Oracle — across coding, system-design, and behavioral rounds.
- Yes. Signing up grants free credits so you can try PhantomCodeAI on a real interview before paying anything. Paid plans start at $19 for a one-time Starter credit pack (credits never expire), with Monthly and Yearly subscriptions available when you are ready to scale up — and subscriptions do not auto-renew.
- PhantomCodeAI offers credit packs (Starter $19, Basic $29, Power $39 — credits never expire), a Monthly subscription at $45/month, and a Yearly subscription at $249/year. Subscriptions do not auto-renew.
- PhantomCodeAI is installed by downloading the macOS build (Apple Silicon M1-M4 or Intel) or the Windows 10/11 installer from phantomcodeai.com/download. After install, sign in, set your preferred programming language, upload your resume for personalization, and launch into Online Interview Mode (live audio) or Online Round Mode (screenshot).
- Most issues are fixed by uninstalling and reinstalling the app from this website. If that doesn't help, email us at customer-care@phantomcodeai.com and we'll get back to you within 24 hours.
Have more questions? Visit our help center for detailed guides and support.
Take the short way.
Download and use PhantomCodeAI today.
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Additional earnings based on video performance and engagement
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