TsarChat: Undetectable
by Design.
From $50/mo · Cancel anytime
Built in San Francisco by former Microsoft and Meta Principal Engineers with deep expertise in operating systems, backend infrastructure, and large scale software engineering.
All leading LLMs. One unified interface.
Instantly switch providers in real time with zero configuration.
OpenAI
GPT & o-series
Anthropic
Claude
Gemini
Pro & Flash
Grok
Grok
Groq
Llama
Advanced Models — We integrate frontier models within 48 hours of release.
Designed to support
every stage.
True Invisibility
Native window cloaking at the hardware compositor level. Invisible to all screen-sharing protocols and recording tools.
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.
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.
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 & Anti-Detection
Designed to be undetectable to standard screen-sharing and recording APIs. Uses native window-display-affinity techniques (ScreenCaptureKit-aware sharing controls on macOS, SetWindowDisplayAffinity on Windows) and runs with a minimal process footprint.
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 Principal Engineers with deep expertise in operating systems, backend infrastructure, and large scale software engineering.
- Visible BuffersStandard DWM and WindowServer rendering mean screen-sharing tools easily capture every pixel.
- Exposed TreeProcess names like CoderHelper.exe appear plainly in Task Manager, alerting "Active Process" detectors.
- High FootprintChromium runtimes consume 500MB+ RAM, introducing 200ms+ of JS-bridge latency to every interaction.
- Hardware CloakingDirectComposition and kCGWindowSharingNone deny enumeration at the kernel level. Apps like Zoom receive zero pixels.
- Fortified BinariesPolymorphic Launcher and Accessibility Cloaking scrub identifying information and keep automated scans from mapping static patterns.
- Metal-Level SpeedPurely GPU-composited overlay with sub-50ms latency and ~60–140MB RAM footprint. 10x faster than web wrappers.
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
TsarChat: powered by the GhostApp stealth engine.
The World's Most Advanced Stealth Engine
Every layer of invisibility, anti-detection, and instant-hide capability is tuned for platforms like Karat, CoderPad, ProctorU, and HackerRank.
Polymorphic Cloaking
Polymorphic Launcher hides from Task Manager and Activity Monitor. 'Active Process' detectors see nothing.
Zero-Focus Prompting
Type expressive prompts smoothly while the target testing module detects that focus never shifted from its own boundaries.
Asymmetric Click Passthrough
Mouse clicks instantly fall straight through the chat window to trigger elements below, while hovering allows scrolling.
Browser Event Suppression
Not a Chrome extension. Safely uses hotkeys by dropping modifier combos before they reach Safe Exam Browser or Respondus.
Credential Fortress
API keys stored natively in OS keychain (Keychain Access / Windows Credential Manager).
Zero-Knowledge Logging
No telemetry, no server-side logs. All data encrypted at rest. We can't see your data.
Panic Wipe Sequence — Absolute Termination
From Question to Answer in 3 Steps
Launch & Vanish
Open GhostApp before your meeting. It instantly cloaks itself — designed to be undetectable to common screen-sharing and recording tools.
Auto-Detect Everything
GhostApp reads your screen and captures audio in real-time. It detects coding problems, behavioral questions, and system design prompts automatically.
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.
GhostApp vs. Interview Coder vs. LockedInAI
Not marketing fluff. Actual technical receipts, feature by feature.
← Scroll horizontally to see every column →
| Feature | GhostApp | Interview Coder | LockedInAI | Others |
|---|---|---|---|---|
| Native App (not Electron) | Yes | No | No | No |
| BYOK (Bring Your Own Keys) | Yes | No | No | No |
| Screen Share Invisibility | Yes | No | No | No |
| Audio Interception | Yes | No | Yes | No |
| Auto Screen Reading | Yes | Yes | Yes | No |
| Panic Kill Hotkey | Yes | No | No | No |
| No Chrome Extension Required | Yes | Yes | No | No |
| Tech Stack | Swift + WinUI 3 / C++ | Electron (Chromium) | Electron / Chrome ext. | Electron / web wrapper |
| Rendering Layer | DirectComposition + CGWindowLevel | DOM / HTML canvas | DOM / HTML canvas | Standard window buffer |
| Screen-Capture Exclusion | kCGWindowSharingNone (kernel) | None (visible in buffer) | None | None |
| Process Tree | Hidden / cloaked | Visible helper processes | Visible | Visible |
| Memory Footprint | ~60-140MB | 500MB+ (Chromium) | 500MB+ | 500MB+ |
| Installer Size | ~30MB | 250MB+ | 200MB+ (Chrome ext. host) | 200MB+ |
| Cold-Start Time | < 200ms | 2–3s (Chromium bootstrap) | 2–3s | 2–3s |
| Idle CPU | < 0.5% | 3–5% (Chromium baseline) | 3–5% | 3–5% |
| Input Latency | Sub-50ms (native hooks) | 200ms+ (JS bridge) | 200ms+ | 200ms+ |
| Audio Capture | CoreAudio tap / WASAPI | WebAudio (sandboxed) | WebAudio | — |
| Credential Storage | OS Keychain / Credential Mgr | Config file / localStorage | localStorage | Config file |
| Encryption at Rest | Secure Enclave / TPM-backed | Software-only | Software-only | None documented |
| Proctor Risk | Mathematically zero | High (tab-switch detection) | High (script injection) | High |
| Model Choice | 5+ (Claude, GPT, Groq, Gemini, Grok) | 1 | 1 | 1 |
| Privacy | Local encryption, zero logs | Server-stored | Server-stored | Server-stored |
Your top questions, answered.
The ones we hear before every purchase. The full list lives on the FAQ page.
Try TsarChat free for a full month.
Download the native app, see the stealth engine for yourself, and decide on your own terms. No credit card. No auto-renewal. No lock-in. Cancel with one click.
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