One of the best apps for investors comes from Bloomberg. It features news, market data, and portfolio tracking. Charts and graphs illustrate business trends and analyze world markets by industry, region, and popularity. Check out a stock's performance and key statistics from the past five years. And (shameless plug alert!) for commentary and analysis on the day's breaking news, use The Motley Fool's app.
Tip: Don't turn these on before cocktail parties. You'll spend the evening in the corner with your phone, not talking to anyone. Or, do turn them on and wow the room with your insightful stock market musings.
Bloomberg app availability: iPhone, iPad, Android phone, Android Tablet, Nokia, BlackBerry
Motley Fool app availability: iPhone and Android