"The Vogue Knitting iPhone app is a complete digital organizing, tracking and planning app for the active knitter. Keep all of your project notes, multiple row counters, needle and crochet hook inventories, yarn stash and swatch info with you when you're out knitting or buying supplies at the local yarn store. Never buy an extra row counter or duplicate needles again!"
It costs $3.99 to download, but that is well worth it and will pay for itself with the amount of time an energy you will save when you use it. Don't forget to scan over the customer reviews for extra important information about this app.