Snap
Photograph one handwritten solution in good light. Lens shrinks it and strips location data on your phone.
Lens · Knot Scan
Find the exact knot. Untangle it.
Snap a handwritten maths, physics or chemistry solution. Lens maps every step, finds the first one that went wrong, and shows you the fix with three quick check questions.
- Untied
- Knotted
- Carried error
Built with Meta SAM 3.1 and Muse Spark
Knot Scan
Show Lens your working
Take a photo of one solutionDrop a photo of one solution here
JPEG, PNG, WebP or HEIC. Lens shrinks it to 1600 px and strips location data before upload.
Keep names and personal info out of the photo. Photos are analysed and not stored. Your Knot Report stays on this device.
- Preparing photo
- Mapping lines with SAM 3.1
- Reading every step with Muse Spark
- Finding the knot
How it works
Three steps, one knot
Segment
Meta SAM 3.1 finds the lines of working. Muse Spark fills any line SAM groups or misses, and Lens snaps each box to the ink.
Untie
Muse Spark finds the first wrong step, names the misconception, gives the fix and three check questions.
Knot Report