I am using an app called
Google Search, which you can find in the Apple App Store. I've all but retired Siri
When you start it, there is a microphone in the middle of the screen. Tap the microphone and ask your question. App will answer your question, like Siri, only much faster. If there isn't a voice answer, you'll get a google search listing of pertinent sites. It works great for navigation... Simply say, "Navigate to the cheesecake factory in orlando, fl" and it will tell you the distance, traffic conditions, time to drive and turn by turn directions.
There are many other google functions to this app, so if you have a Google account, there are many other items you can access...calendar, Google Voice, etc.
You'll be amazed at how fast and comprehensive this app can be.