https://www.appannie.com/apps/ios/app/987464363/app-ranking/#devi...

https://www.appannie.com/apps/ios/a...ng/#device=iphone&daily=2015-10-23&type=ranks

Australia: Sep 25th 62; dropped to lowest 1,051 on 16th Oct; currently 190
India: Sep 25th 650; dropped to lowest 962 on Sep 28th; currently high of 190
U.S.A: Sep 27th 1,005; dropped to lowest of 1,381 on 1st Oct; 715 on Oct 3rd; then down to 1,370 on Oct 10th (after which new version released) now currently 319
U.K. also new high at 372
Canada new high at 547

So:
- initially targeted India (massive population and Brett Lee's reach) trending very well;
- wealthier nations where iOS would be more in use (USA; Australia; UK; Canada) doing very well.

More and more updates/features & full marketing, then we shall see what eventuates.