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Undetectable Meeting Copilot

TsarChat: Undetectable by Design.

The world's most advanced stealth AI chat on the market. Completely invisible, impossible to detect, and built with under 100ms latency for Mac and Windows.

From $50/mo · Cancel anytime

Try GhostApp by TsarChat free for 7 days — No credit card required.

We offer live help to set up GhostApp on your system. Contact us anytime athelp@tsarchat.com

Built in San Francisco by former Microsoft and Meta Engineers with deep expertise in operating systems, backend infrastructure, and large scale software engineering.

Undetectable
< 100ms Latency
Native Apps
Every LLM
The only meeting copilot built to stay invisible

Share your screen. They see nothing.

GhostApp is excluded from Zoom, Teams, Meet, screenshots, and recordings — while you get every frontier model in under 100ms.

Read the Whitepaper
Hidden from the OS

Invisible on your desktop

No Dock. No taskbar. No Alt Tab. Activity Monitor and Task Manager do not get a clean name to hunt.

Zoom / Teams / Meet

Invisible on their screen share

Full screen share on Zoom, Teams, or Meet still shows a clean desktop. Overlay, menus, and popups are excluded at the compositor.

HackerRank safe typing

Type without leaving the meeting

The coding tab stays focused. Keystrokes never hit the browser DOM. Built for HackerRank, CoderPad, and CodeSignal.

Click through Focus Mode

Click through like it is not there

Focus Mode lets clicks pass to the app underneath. Scroll the overlay. The interviewer sees only the problem set.

Under 100ms hide

One shortcut. You never existed.

Instant hide, click through, stop capture, and wipe clipboard. Auto panic if analysis tools probe the process.

New binary every run

A new identity every launch

Randomized binary name, isolated temp path, spoofed parent, burned on exit. Static scanners get nothing to fingerprint.

Runtime + network privacy

Hardened at runtime. Private on the wire.

Anti debug, anti hook, and API integrity checks. HTTP, HTTPS, SOCKS5, and Tor for AI traffic.

Intelligence

All leading LLMs. One unified interface.

Instantly switch providers in real time with zero configuration.

OpenAI

GPT-5.6

Anthropic

Claude 5

Gemini

Gemini 3

Grok

Grok Latest

Groq

GPT-OSS · Qwen 3.6

Advanced Models — We integrate frontier models within 48 hours of release.

Browser extensions get caught.
GhostApp does not.

True Invisibility

Share your entire screen on Zoom, Teams, or Meet. They see a clean desktop. GhostApp stays out of the capture — overlay, menus, and popups included.

Auto Screen Reading

Instantly detects coding questions from your IDE or browser. Zero copy paste. Zero Alt Tab.

Audio Interception

Direct audio taps capture speaker audio in real time, drafting contextual answers as they're asked.

Not Just LeetCode

STAR behavioral answers, system design diagrams, and architecture deep dives — for every round.

Native First Architecture

TsarChat: Native First Architecture (Swift / C++)

Unlike hybrid wrappers (e.g., Electron or Tauri) that depend on heavyweight, sandboxed web views, TsarChat runs through direct OS level integration. This approach eliminates unnecessary abstraction layers, enabling true system level control and near zero latency execution.

SwiftC++MetalDirectCompositionAES 256 GCMASLR + DEP

Metal Level Performance

Built with Swift (macOS) and C++ (Windows) to achieve sub millisecond response times. Leverages Metal and DirectComposition for hardware accelerated rendering, delivering minimal CPU overhead and highly responsive UI performance.

Stealth and Anti Detection

Native capture exclusion on Windows and macOS — Zoom, Teams, and Meet receive zero pixels. GhostApp stays off the Dock, out of Alt Tab, and off the recording.

Hardened Security

Employs a local first, zero knowledge architecture with AES 256 GCM encryption. The binary is fortified with ASLR and DEP protections to mitigate risks such as memory inspection, hooking, and exploitation.

Big Tech Pedigree

Built in San Francisco by former Microsoft and Meta Engineers with deep expertise in operating systems, backend infrastructure, and large scale software engineering.

Legacy Solutions (Electron)
  • Visible on every shareElectron apps render like any other window. Zoom, Teams, and Meet capture every pixel — including the copilot you thought was hidden.
  • A process they can nameHelper names like CoderHelper.exe sit in Task Manager in plain sight. One glance and the overlay is blown.
  • Browser heavy and slowChromium runtimes eat 500MB+ RAM and add 200ms+ of JS bridge lag to every keystroke when seconds count.
GhostApp (Native Swift/C++)
  • Zero pixels on their shareNative capture exclusion on Windows and macOS. Zoom, Teams, and Meet receive a clean desktop — overlay, menus, and popups included.
  • No name to huntA new binary identity every launch, hidden from Dock, taskbar, and Alt Tab. Static scanners get nothing to fingerprint.
  • Native speed, not a wrapperGPU composited overlay with under 50ms latency and about 60 to 140MB RAM. Ten times faster than Electron copilots.

Windows

WinUI 3 / C++ / DirectX

  • DirectComposition cloaked windows
  • Win32 API hooks for process hiding
  • Native WASAPI audio capture
  • Windows Hello biometric lock
  • MSIX secure delivery

macOS

Swift / Metal / CoreAudio

  • CGWindowLevel overlay rendering
  • kCGWindowSharingNone exclusion
  • CoreAudio tap for system audio
  • Touch ID / Secure Enclave lock
  • Sparkle secure auto updates
~3× lower RAM footprint
No Chromium overhead
Native input latency

TsarChat: powered by the GhostApp stealth engine.

One shortcut

Hit hide. In three seconds, you never existed.

Panic Hide cloaks the window, enables click through, stops capture, and wipes the clipboard — then auto triggers if analysis tools probe the process. Start the 30 day trial and test it on a dummy Zoom share.

Window hidden
Stealth enabled
Typing stopped
Clipboard cleared
Popups hidden
Screen share ended
Optional app quit
Workflow

From Question to Answer in 3 Steps

01

Launch & Vanish

Open GhostApp before your meeting. It instantly cloaks itself — designed to be undetectable to common screen-sharing and recording tools.

02

Auto-Detect Everything

GhostApp reads your screen and captures audio in real-time. It detects coding problems, behavioral questions, and system design prompts automatically.

03

Deliver & Impress

Get solutions, explanations, and talking points from the best LLM for each question. Deliver answers naturally while GhostApp stays completely hidden.

Works with everything interviewers throw at you.

Tested weekly against every major platform. When one of them ships an update, we patch within 48 hours.

Meetings & Video
ZoomMicrosoft TeamsGoogle MeetWebexSlack HuddlesLark / Feishu
Coding Platforms
HackerRankCoderPadCodilityCodeSignalLeetCodeHackerEarth
Interview & Environment Analysis
KaratHireVueProctorUProctorioHonorlock
Spoken Languages
EnglishSpanishFrenchGermanRussianPortugueseJapaneseItalianDutch
FAQ

Your top questions, answered.

The ones we hear before every purchase. The full list lives on the FAQ page.

Free for 7 Days · No Credit Card Required

Try TsarChat free for 7 days.

Download the native desktop app, see the stealth engine for yourself, and decide on your own terms. No credit card required. No lock-in. Cancel anytime with one click.

No credit card on file
Works on macOS & Windows 11+
All 5+ LLMs included
Cancel anytime, no lock-in

7-day trial · Cancel anytime

Need help setting up GhostApp on your system? Contact our support team anytime at help@tsarchat.com