I have bought the full version for the Middle East Maps of Mireo Don’t Panic a few weeks ago and tested it as good as possible. I had to go to Al Ain the other day where it was extremely helpful. The routes are announced perfectly and even the speed limits are shown correctly. I can really highly recommend this app on the BlackBerry Z10.
If you need more info on Mireo Don’t Panic you can visit their website here: (LINK)