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There isn't one. Tesla has published the app for iOS and Android alone.
However, you can apparently "sideload" Android apps on the BB Z10?! There are tutorials and such on the web for that so, you may be able to run the Tesla Android app that way.
In fact, I saw the Z10 yesterday and searched for the Tesla application using the search term Tesla - it was right there in a short list. Looked nice from the screen shots, but had to give back the (weird) phone so I didn't get to try it.