Hollow Knight requires precise platforming. The touch screen controls often found in mobile ports of indie games are rarely sufficient for the Pale King's realm.

(a dark substance from the Abyss). The goal was to find a "Pure Vessel" with no mind or will, capable of containing the Radiance forever. The Failed Sacrifice The King chose one vessel, the Hollow Knight

You're looking for content related to Hollow Knight, specifically for an iPA (iPhone/iPad) version. Here's some useful information:

If you want to play Hollow Knight on a mobile screen without the risks of unofficial IPAs, consider these stable methods: