请看Xamarin。他们有Visual Studio的扩展(http://xamarin.com/visual-studio)。

摘自网站:

Xamarin提供了Visual Studio插件，这样你就可以在一个解决方案中开发你的iOS、Android和Windows应用程序。Xamarin扩展支持在模拟器或设备上构建、部署和调试。

只要做一个网页应用。 iOS网页应用包括:

Reliable. The amount of time it takes to make an update is far shorter than with XCode. Fast. JavaScript on iOS is, by nature, far faster than native apps. Free. You never have to pay Apple a cent, as Apple doesn't have any control over you. Safer. If a crash occurs with a native app, it can take down even the newest iOS devices for hours or even days, until the user can fix them. If a web app crashes, the user just has to close and reopen it, worst case scenario. Offline. You can easily create a service worker to handle your app. Secure. Because you do not have access to native APIs, a security breach will be significantly less dangerous. Easy to program. A basic iOS web app can be programmed from the Safari URL bar on an iPhone. Literally. I've done it myself.

B4i是一个新的开发工具，可以创建原生iOS应用程序。它在Windows上运行。 当需要完整编译时(在大多数情况下不需要)，项目将在托管的构建器上编译。每次编译大约需要5秒。 B4i

我用颤振。我在Windows机器上开发，在Android模拟器上测试。当我准备好在iOS上测试时，我在macOS上运行代码。根据我的经验，Flutter应用程序在Android和iOS上运行完全相同。如果你没有Mac，你可以下载VirtualBox并在上面安装macOS。在VirtualBox上，macOS的运行和真正的Mac完全一样，你可以在上面构建应用程序。

查看nsbasic /App Studio。这是iPhone的Visual Basic。(当然你也可以用JavaScript编写代码)。它生产的WebApps无需通过App Store就可以发布。应用程序也可以运行在其他平台上，比如Android。 nsbasic /App Studio

Visual Studio + Xamarin将做这项工作。

不过，我还是建议你买台Mac电脑，用Xcode开发iOS应用。

在罗马，要像罗马人一样生活。