If you would like to boost the battery life of your iPhone by 15 percent, you have to uninstall the Facebook app.

The Guardian writer Samuel Gibbs published an article claiming that deleting the Facebook app on his iPhone 6s Plus and using Facebook's mobile site in Safari instead can help save an average of 15 percent battery life by the end of each day.

He likewise recruited other iPhone owners using the Facebook iOS app to make certain it wasn't an isolated case. They then found comparable outcomes.

He says that apart from conserving battery, he also saved space as the Facebook app had eaten a total of 500 MB when combining the 111 MB of the app along with its cache on the phone.

Gibbs shares that using the Facebook in Safari was nearly as good as using the iOS app.

"You can even place a shortcut to Facebook in Safari on the homescreen that looks almost identical to the app's icon," he says.

Gibbs notes, though, that Facebook in Safari has a restriction, which is the lack of the Share-to feature. On the web browser, sharing photos requires the user to manually hit the "post photos" button on the site. On top of that, Instant Articles does not also exist on the mobile site.

The result varies on the iPhone 6s Plus' smaller sibling, the iPhone 6s. At any rate, deleting the iOS app and using Facebook in Safari instead will lengthen the device's battery life.

This news comes hot on the heels of another report Gibbs earlier made claiming that Facebook's Android app cuts battery life by 20 percent. The writer said even when the Android app is running in the background, it still significantly affects the battery life and the performance of his Nexus 6P.

Upon uninstalling the app from his Android phone, he claimed that he saved an average of 20 percent of battery life every day.

Facebook, in the meantime, said it is already looking into such claims.

"We have heard reports of some people experiencing speed issues stemming from our Android app," said a spokeswoman from Facebook to IT Pro. "We are looking into this and will keep [users] posted. We are committed to continuing to improve these issues."

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