US Edition 
Are you addicted to your mobile phone? Take the test
Text messages, email, social networks, addictive games: our phones are too interesting to leave alone for more than a few minutes. But have you ever wondered exactly how much time you spend on your smartphone? And would you like the answer?
Modern life is punctuated by glances at our mobile phones: sending a text message; catching up on email; playing a game of Solitaire. No period of inactivity is too short to fill with a quick social networking session, no escalator ride too brief to update Twitter.
But are we spending too long staring at these tiny screens, and not enough time in the real world?
Californian developers have created a new app called QualityTime which records how long you spend interacting with your phone, even going as far as to log how many times you use each app. At the end of the day or the week you can then look back at your totals. And the numbers may shock you.
You can then impose limits on yourself if you don’t like what you see, setting alerts to inform you when you’ve spent too long using a certain app – or even locking you out for a certain time for your own good.
The developers say that the software is intended to “curb your habits” and “help you manage and control your usage”.
"Once the app is installed, it works quietly in the background to monitor and track your mobile usage activities," the company says on its website.
"Whether you are serious about curbing your phone usage or simply curious about how you use your device, the app provides a unique personal activities log displayed as a ‘timeline’ from morning to night giving you a quick visual "at-a-glance" view of your usage activities instead of the typical numerical charts."
At the moment the app is only available on Android phones, but it has already been downloaded over 100 times since it launched this morning.
The company says that "iOS restrictions" mean that creating such an app for the iPhone is impossible.