AI-powered exam assistant

Invisible overlay. Instant answers. Works inside locked-down browsers where nothing else can.

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Data Stored
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Screenshot to Answer

Capture any question with a hotkey. AI reads it and returns the answer in seconds — right on your screen.

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Fully Undetectable

Invisible overlay that works inside locked-down browsers. No tabs, no windows, no trace left behind.

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Quick & In-Depth Modes

Get just the answer letter for speed, or full explanations with reasoning. Switch per question.

canvas.university.edu/courses/quiz/attempt
Hist101 › Quizzes › American Revolution Quiz
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American Revolution Quiz
Started: Jun 4 at 10:57am
Question 10.5 pts
The “Coercive Acts” of 1774 were put in place by Parliament in response to what?
  • The Declaration of Independence
  • The Boston Tea Party
  • Colonists rejecting the Anglican Church
  • The Battle of Lexington
CtrlJ
Premium
B) The Boston Tea Party
The Coercive Acts were Parliament's punitive response to the Boston Tea Party of 1773.
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LockDown Browser
Midterm Exam — Requires LockDown Browser
0:14:32 remaining
Question 12  (4 points)
What is the primary function of mitochondria in eukaryotic cells?
  • Protein synthesis
  • ATP production
  • DNA replication
  • Lipid storage
CtrlJ
Premium
B) ATP production
Mitochondria are the cell's powerhouses, generating ATP through oxidative phosphorylation.
Works inside Canvas, LockDown Browser, Brightspace, and more
(Premium) Expiry: 2026-09-28
Ctrl+J Capture    Ctrl+Y Grab Text    Ctrl+M Send    Ctrl+L Input
Ctrl+T Hide      Ctrl+Del Clear Cap   Ctrl+↑ Scroll Up   Ctrl+↓ Scroll Dn
Hold Right Click for Auto Capture    Ctrl+H to close
Answer: B) The Boston Tea Party The Coercive Acts were Parliament's punitive response to the Boston Tea Party of 1773.
(Quick Answer)
The real Crucio overlay

How It Works

1

Launch Crucio

Run the app before your exam. It loads as an invisible overlay on top of everything — including locked browsers.

2

Capture a Question

Press your capture hotkey. Crucio screenshots the question and sends it to AI instantly.

3

Get Your Answer

The answer appears on your overlay in seconds. Toggle visibility on and off with a hotkey.

Guides

1
Disable Windows Security
Temporarily disable real-time protection so Windows doesn't quarantine the file.
  • Open Windows Security (search it in Start)
  • Go to Virus & threat protection
  • Click Manage settings
  • Toggle off Real-time protection
Why? Crucio uses advanced system-level techniques that trigger false positives. It does not contain malware. You can re-enable protection after setup.
2
Download Crucio
Go to crucio.xyz/loader and enter your license key to download CrucioSetup.exe.
3
Add an Exclusion Folder
Prevent Windows from deleting Crucio when you re-enable protection:
  • In Virus & threat protection settings, scroll to Exclusions
  • Click Add or remove exclusions
  • Add a Folder exclusion for where you saved CrucioSetup.exe
4
Run CrucioSetup
Double-click CrucioSetup.exe. If SmartScreen pops up:
  • Click More info
  • Click Run anyway
5
Enter Your License Key
When prompted, paste your license key. The overlay will activate and appear on screen.
  • Your key is locked to your device on first use
  • The overlay runs invisibly — use the hotkey to toggle it
6
Re-enable Windows Security
Turn Real-time protection back on. As long as the exclusion folder is set, Crucio won't be touched.

All default keybinds. Premium users can customize every key.

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Capture Screenshot
Grabs your screen and sends to AI
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Text Input
Type a question manually
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Send to AI
Submit your input for an answer
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Toggle Overlay
Show or hide the answer panel
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Grab & Move
Drag the overlay to reposition
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Help / Info
Show keybind reference in-app
CtrlDel
Clear Capture
Discard current screenshot
Ctrl↑↓
Scroll Answer
Scroll through long responses
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Open settings panel
CtrlQ
Exit Crucio
Close and clean up

Quick Mode

Get just the answer letter (A, B, C...) — fastest response, no extra text. Perfect during timed exams.

In-Depth Mode

Full explanation with reasoning. Explains why each answer is correct and why others are wrong.

Stay Hidden

Use Ctrl+T to toggle the overlay off before anyone walks by. The process stays invisible in Task Manager.

Plans

  • Fully undetectable stealth overlay
  • Text input to Gemini AI
  • AI responses displayed on screen
  • Default keybind controls
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  • One-press AI response
  • Custom keybinds
  • Secure Engine 2.0

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Your Trial Key
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FAQ

Is it really undetectable? ▼
Yes. Crucio runs as a system-level overlay, not a browser extension. It works on top of Lockdown Browser and any other locked-down testing software. There are no tabs, no processes with suspicious names, and no trace left behind.
Do you store my screenshots or answers? ▼
No. Your screenshots go directly to the AI and are never stored on our servers. We keep zero logs. Nothing is saved unless you enable the local save feature (Premium).
What exams does it work with? ▼
Any exam you can see on your screen — Canvas, Blackboard, McGraw-Hill, Pearson, Respondus Lockdown Browser, and more. If you can see the question, Crucio can capture and answer it.
How does the license key work? ▼
After purchase, you get a unique license key instantly. Enter it in Crucio to activate your plan. The key is locked to your device — save it in case you need to reinstall. Upgrade anytime by purchasing a new plan.