Fake converters ask you to upload your APK file. That APK may contain:
To understand why an "APK to IPA converter online for iOS" is largely a myth, you must first understand what these file formats actually are. apk to ipa converter online ios
If you somehow manage to get a custom .ipa file (perhaps an open-source app recompiled by a developer for iOS), you can "sideload" it onto your iPhone without the App Store. Fake converters ask you to upload your APK file