Knitting and apps seems immediately to belong to two different worlds. It does not have to be.
It’s probably the fewest, linking something so analog as to knit with the yarn with the digital world. But there are actually lots of apps aimed at making life easier for everything from beginners to super-knit core out in the world.
There are actually a lot of people who knit. In the old days we would typically see them sit with their yarn and knitwear with a small notebook and pencil lying next to keep track of patterns, masks, sticks and so on.
You can still choose to use the analog method, but there are alternatives both for Android and iOS platform. Of course, there are also lots of knitting shops where you can buy all types of yarn and accessories to its knitting hobby-everything from digital sticks counters to “Made by Grandma”-tags to sew in the neck on sweaters to the grandchildren.