Is it possible to take advantage of the international keyboard feature for the iPhone and create a custom keyboard that can be used over the entire phone not just within a particular app?
Similar to the Emoji keyboard but I'm under the impression that's somehow native to iOS and is just disabled by default?
I've looked at a lot of the questions on here regarding this, I'd just like to get a definitive answer.
As per Apple's submission guidelines:
There are no public APIs to add an additional keyboard.
The files that store keyboard data are definitely stored outside of your app's container.
In short: There is no way to implement a custom global keyboard on a non-jailbroken iOS device at this point in time.