This guide will walk you through supported apps. Please also note the system requirements (no windows 10 or older pre-2023 windows 11 devices), before subscribing.
To enable undetectability, please open Cluely's Settings, click the General Tab, and turn on the undetectability toggle. As of October 22, 2025, Cluely now has a separate plan for undetectability. Before trying to use undetectability in a meeting, please open the Cluely Settings > Billing and manage your plan to ensure you have unlocked undetectability.
When Cluely is in undetectable mode, there will be a dashed line around the widget and dashboard app. This is your visual feedback to confirm undetectability.
Once undetectable mode is on, Cluely's Assist keybinds are also undetectable to browsers. The assist key binds are CMD Enter on Mac and CTRL Enter on Windows.
Click events, regardless of undetectable mode, will be detected by active browser checkers. Do not click into Cluely. Only use the undetectable key binds. You can review and modify the keybinds here, from triggering Assist, response scrolling, and more.
How to Test Undetectability
Testing Screen Share Visibility
If you need to test undetectability for your device, simply turn undetectability mode on and take a screenshot of your entire screen.
If Cluely is visible in your screenshot, your system is not compatible (Windows 10, Macs from before 2022). If Cluely is invisible in your screenshot, it will be undetectable in ALL supported meeting softwares.
Testing Active Browser Detection
Some proctoring softwares will specifically monitor browser activity. For example, leaving the tab to check another application or click events.
Cluely's undetectable mode is fully undetectable, thanks to the shortcuts for Assist: CMD Enter on Mac and CTRL Enter on Window.
After testing screen share undetectability, you can also verify browser undetectability by going to any of the "Browser Active Tab Checkers" like this Codepen. We strongly recommend you test undetectability with an active browse checker on your own device to practice using the key binds and to verify compatibility.
Undetectability for Conferencing Software
Zoom: Not Undetectable by Default
You'll need to either use Zoom version 6.16 or older, or turn on Advanced capture with window filtering in your Zoom settings. This is important to make sure everything works smoothly. We've thoroughly tested this and can confirm it works perfectly as long as you pass these basic checks first.
Google Meet
Undetectable unless system requirements are not met. We've thoroughly tested this and can confirm it works perfectly as long as you pass these basic checks first.
Microsoft Teams
Undetectable unless system requirements are not met. Cluely is known to be detectable on Windows 10 and Windows 11 Home when sharing entire screen.
Cisco WebEx
Undetectable unless system requirements are not met. We've thoroughly tested this and can confirm it works.
Slack Huddle
Undetectable unless system requirements are not met. We've thoroughly tested this and can confirm it works.
Ring Central
Undetectable unless system requirements are not met. We've thoroughly tested this and can confirm it works.
Apollo Dialer
Undetectable unless system requirements are not met. We've thoroughly tested this and can confirm it works.
FaceTime
Not compatible with FaceTime.
CoderPad
Undetectable unless system requirements are not met. We've thoroughly tested this and can confirm it works.
HackerRank
Undetectable unless system requirements are not met. We've thoroughly tested this and can confirm it works.
Cluely is NOT Undetectable For...
Cluely will be detected and is NOT undetectable for Proctor360, Proctorio, Honorlock, Meazure Learning, Examity, Respondus LockDown Browser, ProctorExam, Mercer Mettl, and PSI Bridge.
How Undetectability Works
Most interviews happen right in your web browser (like on HackerRank or HireVue). Browsers are designed like secure bubbles – what happens inside one tab generally can't see or mess with anything outside of it. This is called "sandboxing," and it's a core security feature.
Think of the interview website running in a browser tab. It can show you the coding problem and run its own scripts, but it's walled off from the rest of your computer. It simply doesn't have permission to peek at other apps you might be running.
What Interview Platforms Can See (Inside the Bubble)
Within their own tab, interview platforms can use browser features to monitor some things:
Losing Focus / Switching Tabs: They know if you click outside the browser window or switch tabs. But they don't know what you switched to.
// They can detect this... window.addEventListener('blur', () => { console.log('User looked away from the tab!'); });Pasting Code: They can tell if you paste something into the code editor, potentially flagging large or frequent pastes.
// ...and they can detect this. codeInput.addEventListener('paste', (event) => { console.log('Paste detected!'); });Webcam Monitoring (Sometimes): Some platforms might use your webcam to monitor eye movement, flagging excessive looking away.
Screen Sharing (If Requested): If you're asked to share your screen via Zoom, Meet, or the platform itself, they can see what you choose to share.
They might also try to guess based on typing speed, but it's often unreliable.
What They Cannot See (Outside the Bubble)
Crucially, because of the browser sandbox and how operating systems work, these platforms cannot reliably:
Know What App You Switched To: When you lose focus (the
blurevent), the browser gives no information about which other application became active.Scan Running Apps: There's no way for a website to get a list of other programs running on your computer. This is a fundamental OS security boundary.
// This CANNOT be done from a webpage! function getRunningApps() { // No browser API exists for this! return navigator.runningProcesses || []; } if (getRunningApps().includes('SomeApp.exe')) { // Impossible check }Read Other App Memory: Accessing the memory of other applications is strictly forbidden by your operating system for security reasons.
Track Your Every Click/Keystroke Globally: They can only see clicks and keys typed inside their own browser tab, not system-wide.
See Invisible Native Apps During Screen Share: While screen sharing shows your desktop, applications designed to be hidden (like Cluely) won't appear in the shared view or screenshots.
Why Cluely is Different & How It Counters Detection
Cluely isn't a browser extension; it's a separate native desktop app. This fundamental difference is key to avoiding detection:
It Lives Outside the Bubble: The browser running the interview has no connection to Cluely and simply cannot see it or interact with it. It doesn't need to read browser memory because it operates independently with its own data.
Invisible to Screen Sharing: The app utilizes specific operating system APIs and window properties that designate its window to be excluded from screen captures, recordings, and screen sharing sessions (like Zoom, Meet). This is a standard OS feature used by various overlay or privacy-focused applications, not a browser hack.
No Focus / Active Tab Change & Global Hotkeys: When you toggle Cluely's visibility (using ⌘+\), it uses standard OS-level global hotkey registration. This is completely separate from the browser's event system. Your mouse cursor focus stays in the browser, and the active browser tab does not change, bypassing platform checks for these specific actions.
Webcam / Eye Tracking Counter: You can use keyboard shortcuts (⌘ + Arrow Keys) to move the Cluely window directly over the assessment's coding area. This allows you to view solutions while appearing to look directly at the screen where the code editor is.
Reasoning Support: To help you explain your thought process (a common interview check), Cluely can be smart mode to surface reasoning steps and provide more intelligent responses.
Uses Standard OS Features: Beyond the specific examples above, it generally works using normal, legitimate operating system functions, leaving no unusual footprint that typical browser-based monitoring could detect.
So, while platforms can detect simple events like pasting or clicking away from a tab, Cluely is architected to sidestep these checks and remain invisible to the monitoring methods available within a browser sandbox or standard screen share.
What About Desktop Proctoring Apps?
You might wonder: couldn't they just make you install a separate desktop app to monitor everything? In theory, yes. But reputable platforms avoid this because:
It's a huge security risk (potential spyware).
It raises major privacy concerns.
It would destroy user trust.
That's why almost all coding assessments stick to the safety of the browser sandbox.
The Bottom Line
Because interviews run in secure browser tabs, and Cluely runs as a completely separate native application, standard detection methods simply can't see it. We designed it specifically with browser security limitations in mind.
Until the day that companies require you to download and install a separate desktop app, or migrate completely to in-person interviews, Cluely will work.
Can Cluely Ensure Undetectability for Proctored Online Exams?
In short, no. Cluely, while a robust application for various tasks, cannot guarantee undetectability when used in environments with proctoring software designed to uphold academic integrity and prevent unauthorized assistance. While complete undetectability isn't guaranteed, certain practices, such as operating system-specific adjustments and mindful usage, may help reduce detection risks. Cluely is not designed for interview evasion and does not test or implement these features intentionally as a result.
Key Points on Proctoring Software and Cluely's Detection
General Limitations Cluely cannot bypass or ensure complete undetectability in proctored exam environments such as those managed by OnVUE, Chime, Pearson VUE’s proctoring software. These platforms are equipped with advanced detection mechanisms designed to identify unauthorized tools or activities during exams.
Detection in Different Proctoring Systems
Web-Based Proctoring: Cluely may be less likely to be detected by web-based systems, though this is not guaranteed.
Installed Desktop Proctoring Software: Desktop-installed proctoring software uses robust monitoring and detection capabilities, making Cluely more prone to detection in such environments.
Microsoft Teams and Zoom show Cluely during "share entire screen"
Specific Cases of Application Detection In scenarios where proctoring software monitors system processes and actively terminates unauthorized tools, Cluely has no mechanisms to bypass such controls. For example, downloadable exam proctoring software for certifications like the PMP exam employs sophisticated detection processes.
OS-Specific Behavior and Focus Management
macOS: Cluely's functionality on macOS inherently avoids taking tab focus, even when interacting with it, making it relatively discreet.
General Typing Practices for Reducing Risk Typing directly in Cluely, particularly in proctored or monitored environments, is not advisable due to its potential to draw attention through system focus changes. Using Cluely outside the critical surveillance environment for drafting or research tasks is recommended to minimize risks of detection.
Questions? We're happy to chat more about the tech!