5 Android keyboard apps for easier typing

Quick: What are the most important apps on your phone when it comes to getting stuff done?
If you're like most people I've asked, "the keyboard" probably wasn't one of the first things that came to mind. When you stop and think about it, though, the interface that lets you input text plays a critical role in your mobile productivity. Whether you're editing documents or simply sending an email, it has more of an impact on your on-the-go efficiency than almost anything else on your device.
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