The MOST IMPORTANT features needed: 1) a MULTIPLE sort features like alphabetical, then by priority, date, etc (we are talking about very organized people using these lists) 2) a data import and export feature to backup & import lists (csv files so the 500k+ people who used ListMaster can transition to your app) while keeping our info safe (if our phone dies or is lost or stolen) 3) a feature to attach files or pictures Make ALL of these additional features for $1 month to get monthly income