I appreciate the official BluetoothLE extension. It's great as a reference for making extensions and for making a device-specific BLE extension.
However... As an extension it is unavailable for iOS. 
BluetoothLE has been in iPhones since the 4S model (circa 2011). Could the BluetoothLE extension pretty please be considered for inclusion as a built in component?
As a generic BluetoothLE implementation, it could enable anyone to implement specific device protocols.
As far as I know, the MIT App Inventor Team is trying to turn the BluetoothLE extension as an actual component on iOS. That way, you can use the BluetoothLE component on iOS as well.
As far as I know, the MIT App Inventor Team is trying to turn the BluetoothLE extension as an actual component on iOS.
That would be great! Did I miss this discussion or an announcement?
You can see @ewpatton's post here.
Because of many limitations that Apple puts on apps, we will not be able to use the extension approach in iOS.