Does the iPhone have a ONE-HANDED keyboard? Developer reveals hidden code which has 'been there since at least iOS 8'

With the latest iPhone 7 measuring 6.7 centimetres (2.6 inches) in width, it can be difficult for users with small hands to type with just one hand. But it appears Apple may have a one-handed keyboard hidden in code, which has ‘been there since at least iOS 8.
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