TsarChat: Undetectable
by Design.
From $50/mo · Cancel anytime
All leading LLMs. One unified interface.
Instantly switch providers in real time with zero configuration.
OpenAI
GPT-4o, o1, o3
Anthropic
Claude 3.5 & 3.7
Gemini
1.5 Pro & Flash
Grok
Grok-1, Grok-2
Groq
Llama 3 (70B, 405B)
Advanced Models — We integrate frontier models within 48 hours of release.
Designed to support
every stage.
True Invisibility
Native window cloaking at the kernel 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
Engineered in the San Francisco Bay Area.
- 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 BinariesStripped from system information queries with CFG and scrambled strings to eliminate reverse-engineering vectors.
- Metal-Level Speedpurely GPU-composited overlay with sub-50ms latency and ~40MB 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.
Process Cloaking
Hidden from Task Manager and Activity Monitor. “Active Process” detectors see nothing.
Gaze-Optimized UI
Overlay sits directly under your camera lens — your eye-line stays on the interviewer, no gaze-tracking flags.
Zero Extension Footprint
Not a Chrome extension. Nothing injected into your browser. HackerRank / CoderPad / Karat can't detect what isn't there.
Credential Fortress
API keys stored in OS keychain (Keychain Access / Windows Credential Manager).
Encrypted Local Storage
All data encrypted at rest. Nothing leaves your machine unencrypted.
Zero-Knowledge Logging
No telemetry, no analytics, no server-side logs. We can't see your data.
Focus Mode — Instant Panic Kill
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. Coder vs. LockedInAI
Not marketing fluff. Actual technical receipts, feature by feature.
← Scroll horizontally to see every column →
| Feature | GhostApp | Coder | LockedInAI | Others |
|---|---|---|---|---|
| Native App (not Electron) | — | — | — | |
| Audio Interception | — | — | ||
| Auto Screen Reading | — | |||
| Panic Kill Hotkey | — | — | — | |
| 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 | ~40MB | 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 2 full weeks.
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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