>>>WinDev from PCSoft
>
>Same app can be served, run on desktop, or run on android/iOS? I'd understood you could reuse source but would need 3 different development products to generate 3 different UI. More than happy to be shown wrong!

Same app on all 3 platforms but …

Obviously not all functionality is applicable and thus available for all platforms. Some things can be done on one platform that cannot be done on another (or would not need or want to be done on another).

You learn a single language, which they call WLanguage, to program for any platform.

The same code can be compiled for any platform (with the above mentioned restrictions plus the fact that web/browser based is a fundamentally different design model viz. the whole disconnected browser/server thing).

There are 3 IDE tools, one for desktop, Web and Mobile. You need to buy each one separately but they look and feel and work the same i.e. you really learn only one IDE. But each one is customised for the target platform so the Mobile IDE has testing & visual tools for mobile units, the Web IDE includes client/server code blocks so that you can specify what code must run on the server and what code must run in the browser - these are obvious IDE design requirements since target platforms are so different between desktop/web/mobile.

But a single language, compile to any platform (provided the code does not contain unsupported commands/functions for the target platform). 32/64 bit support. Integrated database (which exceed 2Gb VFP limits, includes full-text searching indexes, database encryption and much more), plus 3rd party database connectivity, plus over 30 3rd party tools that I have bought for VFP all built in.

Extensive documentation, both built into the IDE and online.