The most reliable way to use Android apps on iOS is to run Android on a cloud server or a secondary phone and remote into it.
(often found on Cydia repositories) that provides a nostalgic, functional Android interface (like the 2.3 GingerBread era) on an iPhone screen. Functionality: Iandroid Ipa Download
A progress bar crawled across his vision, glowing a violent shade of violet—the color created when green and silver collide. His head throbbed. For a second, he saw the world in dual-code: the chaotic, open-source beauty of the Android streets and the sleek, restricted elegance of the iOS skyscrapers. Downloading IPA Files for iOS Apps: A Guide