What it does: This intuitive, well-designed app keeps track of all of your expenses for the day, week, month, or year. You manually enter each purchase to keep track of your spending for Black Friday and beyond. It's fully customizable, so you can set up different payment types, expense categories, and names of stores/vendors.
Who it's for: Active shoppers who need to keep to a budget; iWallet lets you set a specific budget for each day.
Price: Android: free, iOS: $4.99
Compatible with: Android, iOS