Just purchased, and Im very pleased! Other reviewers are wrong — I dont know what size ranges they were looking for — but my guess is that the app works for sizes up to a womans 2X or a mans XL. I typically wear an extra-large in sweaters, and only need a 48-inch sweater for 4 inches of ease. The app will calculate yardage for sweaters up to a 52-inch chest measurement. Other projects include scarves, socks, gloves, mittens, vests and hats. Also includes typical gauge for different weights of yarn. Very helpful!
singsastarrynight about Knit Handy