Keyboard Settings on Your iPhone with iOS 9
Under Keyboard settings, you can turn on or off autocapitalization and turn on or off Enable Caps Lock. Autocapitalization, which the iPhone turns on by default, means that the first letter of the first word you type after ending the preceding sentence with a period, a question mark, or an exclamation point is capitalized. If Cap Locks is enabled, all letters are uppercased LIKE THIS if you double-tap the shift key. (The shift key is the one with the arrow pointing up.)
You can also turn on a keyboard setting that inserts a period followed by a space when you double-tap the space key. Additionally, you can choose to use an international keyboard, which you select by tapping Keyboards under the Keyboard setting and then choosing Add New Keyboard.
Apple gives you the power to substitute the default keyboard on your phone for a custom alternative. Among the choices that you might consider — some free and some for modest fees — are Swype, SwiftKey, Fleksy, Adaptxt, and Minuum.
If you’re sticking with Apple’s default keyboard, you can turn on or off the keyboard’s autocorrection smarts here.
And you can add keyboard shortcuts such as omw for On my way! To do so, tap Shortcuts so that the switch is turned on. Then tap Text Replacement, and create a shortcut that will automatically expand into the word or phrase you have in mind as you type. Tap the + under Text Replacement to type such a shortcut or tap an existing shortcut to make a change. If you tap Edit instead, you can remove an existing shortcut.
If you like the fact that Apple is now making predictions as you type, leave the Predictive setting here turned on. If you prefer things the old-fashioned way, flip the Predictive switch off. You can also turn on a setting that lets your chosen keyboard check your spelling.
When you typed on the iPhone keyboard in the past, you received visual feedback of the key you struck because that letter momentarily swelled to a larger size. Such feedback is no longer automatic. If you want the iPhone to follow this traditional ritual, make sure that the new Character Preview switch under Keyboard settings is enabled.
Note the Keyboard settings under Accessibilities settings. You can flip a switch to show lowercase keys if you’re not pressing the shift key. In this section, you also find dedicated settings if you use a hardware keyboard with your phone.
You’ll also find the switch to enable Dictation here.