Measures leaf area across a timelapse photo series to chart growth (or stress) over time
Upload a single photo with multiple plants to compare their current size to each other (a before/after collage photo is auto-detected and split into a growth chart instead), or 2-30 photos of the same plant(s) taken on different days to chart growth over time. A local HSV green-hue threshold measures leaf area (no ML model, no API cost).