With the economy in continuing decline, keeping tight control over your money is no longer just for obsessives. These financial apps for Google Android help you count every penny.

Personal Budget Droid is a simple budget- and bills-tracker that lets you create multiple monthly budgets for groceries, housing costs, and so on. You enter every budget name and transaction by hand, but the app keeps a transaction history and calculates how much you have left for each category.

The more sophisticated FireWallet works with budgets inside various accounts and protects your information behind a four-digit pin you change from the all-zero default. It’s a bit trickier to navigate, but also shoehorns in more options. In addition to a more refined interface, FireWallet has graphs and charts to help visualize your spending, and a rudimentary tool to alert you of upcoming bills. Both it and Personal Budget Droid are missing templates and more powerful features to optionally suck in real-time data from your checking, savings, and stock portfolios. Time for a mobile version of Mint?

Flick to either side for a calc that rounds up; up or down gets you a breakdown of numbers to pass around.

(Credit: TouchTip)

TouchTip is our current favorite tip calculator for Google Android. Flick a finger left or right to slide between a simple tip calculator that rounds up to the nearest dollar or ten dollars, and one featuring a ten-digit keypad. Both views use the bill total, tax, and number of diners to calculate your total payment. Flicking up or down produces a breakdown of what you owe that you can pass around the table to friends.

Personal Tip Jar hails from the same developer as Personal Budget Droid, and shares a few visual characteristics, including a useless “news” tab. Yet Tip Jar is a great niche nod to those whose incomes are built substantially on tips. While a fuller budgeting app could easily accommodate gains from tipping, this application provides a daily, weekly, monthly, and yearly summary at a glance.

Stock apps on Android are extremely mediocre, but the simply named Stock App is better than other skeletal tickers. This one opens with Dow, Nasdaq, S&P 500, Yahoo, and Google presets. You can add your own by pressing the menu key, and can browse frequently traded stocks. Stock App displays the value and percentage change up front; double-tap an entry to see more stats. While it’s functional, Android is sorely missing the completeness of a stock-tracker like Bloomberg for iPhone. Get to it, developers.