WASHINGTON — Online privacy rules are changing. The question now is how much you’ll care.

America’s tech industry is finalizing voluntary disclosure standards on the sensitive information being sucked from your smartphone like your location, surfing habits and contacts. Senate Democrats are pushing for a clearer opt-out button for all online tracking. And Microsoft is offering a new browser that encourages people to block the technology that enables tracking.

Industry officials say they understand some people want greater control. But they are betting that consumers don’t really mind trading some basic information about themselves for free access.

“Consumers are very pragmatic people,” Lou Mastria, managing director of the Digital Advertising Alliance, said in an interview this week. “They want free content. They understand there’s a value exchange. And they’re OK with it.”

Mobile applications like Google Maps, Angry Birds and GasBuddy have become popular, inexpensive ways to personalize smartphones or tablets and improve their functionality. Often free or just 99 cents to download, apps can turn a phone into a sophisticated roaming office or game console with interactive maps and 24-7 connectivity.

But like all those websites that offer medical advice or parenting tips, there’s a hitch: They want information from you like your birthdate or ZIP code. Developers say data collection is necessary for the software to work as promised and to reward the intellectual creativity behind it.

“There’s no free lunch,” said Adam Thierer, a senior research fellow at George Mason University’s Mercatus Center. “It’s essentially a quid pro quo. You’ll trade a little bit of information for all that free content and great services.”

The online privacy debate has stumped Congress and prompted limited input from the Obama administration, mindful of consumers’ concerns but reluctant to crush a growing industry in a difficult economy. Some lawmakers, mostly Democrats but some libertarian Republicans, say consumers should have the option of not being tracked at all.