I downloaded baby tracker because it tracks breast feeding and other things. We will be switching off day and night with the baby once I go back to work so I needed something we could both use and sync between an iPhone and a droid. I can track breast feeding, pumping, bottle feeding, diaper changes, and sleep.
Do you want to keep track of how long between breastfeeds or which breast you ended on? We had bought the itzbeen baby timer https://www.toysrus.com/buy/accessories/itzbeen-baby-care-timer-blue-wd68-3039774 which does both. I actually found it easier to use than an app on my phone. If you want to just keep track of what breast to use on your next feed, i've heard people putting a bracelet on that wrist.
Re: Breast feeding apps?