Use a CI/CD service like Codemagic or GitHub Actions to build your cross-platform application code on remote macOS infrastructure. You cannot build IPA files directly on Windows.
: iOS is a "walled garden" that requires apps to be digitally signed by Apple and distributed through the App Store or official developer tools. Realistic Alternatives exe to ipa converter
If you are a developer with the source code, you must recompile the application for iOS using Xcode. Use a CI/CD service like Codemagic or GitHub
Crucially, an IPA is signed with an Apple-issued certificate. Without a valid signature, iOS will refuse to install it, even if the code is perfect. iOS will refuse to install it