Tap A or B to switch between the two photos.
Compare them side by side to spot the differences.
PHOTODETECT
PINCH TO ZOOM
Pinch to zoom in and out. Drag with one finger to pan around.
Some clues are tiny — zoom is your best friend.
🔎 ZOOM IN TO FIND THE SMALL CLUES
PHOTODETECT
TOUCH & HOLD TO SUBMIT
Found a difference? Touch and hold the spot.
The PD magnifying glass grows under your finger — when it reaches full size, your guess locks in. ✅ Green check = evidence found! ❌ Red X = wrong guess (strike). 3 strikes = SUSPENDED — you’re locked out until the round ends.
UNDERCOVER MODE
MAKE YOUR OWN PUZZLE — OPPONENTS SOLVE IT
UNDERCOVER
EDITOR TOOLS
Brush — paint over areas Erase — remove your edits Blur — smudge details away Clone — copy & paste from the photo Select — grab a region to move/transform Pan — scroll around the image Pick — sample a color from the photo
UNDERCOVER
GHOST CONTROLS
After selecting or cloning, a ghost appears. Drag it to reposition.
Use the dial to rotate freely (0–360°). Flip horizontal or vertical. Scale slider to resize.
Tap the photo outside the ghost to stamp it down.
UNDERCOVER
HIT BOXES
After editing, draw boxes around each change you made.
These are the spots your opponents need to find.
Mark all your changes, then hit SUBMIT.