I am in India and I can see the app on top spot (marked as Ad) when I search for Bitcoin Wallet.

My theory is, they paid for an Ad in a specific region and hence it started showing on top, people started downloading in that region, and that boosted the overall ranking for that app and hence people from other regions are seeing it among top results, even though its not an Ad there. Irrespective of the rating or freshness of the app, since it is getting downloaded in one region (because it is an Ad there), automatically it goes to top in other regions.

This trick can be used by other apps also, considering it would be cheapter to buy the top Ad spot in India and then it organically rises to the top.

and in this scenario, Apple has no incentive to stamp this out as they make money either way.

I did something very similar to connect my Amazon Fire-stick with my new TV at a different place when I had lost the remote (of Fire-stick). The TV remote was helpful, but only after I could connect the Fire-stick with a working Internet connection.

I remembered my old home's wifi SSID and password, so created a hotspot on my phone with the same SSID and password, and the Fire-stick got connected. All went good after that.

Started recently to host on my own - https://hipenguin.in

Mostly stuff related to Software QA (Quality Analysis - Testing).

I am using an iPhone SE only because of its size. Android devices are huge, the top factor is its battery life - to have a good battery (as Android consumes more battery) they need to keep its size big.