One of the hardest parts of running a business is managing your expenses. With so many business services and subscriptions clocking in monthly fees to your bank account these days, it's easy to justify a couple of $15 monthly fees, but then find yourself hundreds of dollars over budget at the end of the quarter.

Related: 7 Ways to Make Sure Your Variable Expenses Don't Sink Your Budget

So, while it may sound obvious, that old rule needs to be repeated: In both business and personal life, you need to know where your money is going. That's crucial for keeping things under control. Thankfully, a handful of apps and programs are out there to help you track your spending, lower your bills and generally stay aware of (and on top of) your business's financial situation.