MINT

Android, iOS, Windows Phone Free

This wildly popular app monitors and automatically categorizes transactions. See all of your personal finance accounts in a single location. Get bill alerts and reminders, lowbalance alerts, etc., via email or text alerts. The tablet version of the app even tabulates your expenditure into charts and graphs, so you’ll instantly know what you’ve been spending on.

Know where most of your money goes, at a glance.

Comparing expenses will help you prioritize your budget.