Using Unity for Programs and not Games

Hi, I am about to begin working on my dissertation for AP Computer Science, and I am currently looking for alternatives to plain Windows Forms, WPF, MVC and so on, when it comes to creating windows applications.
Edit: Must be C# dependant.

I remember back when I first joined this community (back in '13) I came across an interesting discussion on the forums about somebody having used Unity to create not a game, but an accounting program.
That has lead me to think; what are my options today ?
If unity contains enough functions for this, I would very much love it, since the project also require an android, iphone and web app. And with the integration of Unity this would all be very much simplified.

My most basic requirements is that I can communicate with webservices, such as Microsoft Azure and use mssql databases either through direct connection or json.

If this is plausible with Unity, I was hoping somebody could point me in the right direction ?

The graphical and modular ability of Unity is something that I would love to include in my app(s). And the multi-platform without-too-much-hassle is something that definitely wins a couple of points.

Ps: I have found a few topics such as my own, but these were from before '12, and a lot has happened with Unity since then. So I’m looking for a more up-to-date answer.

Unity 2017.1 beta has experimental support for C# 4.6, you should be able to do anything with that that you can do outside of Unity.

In theory, pretty much anything can be made in Unity. The problem is that Unity is a game engine, so it’s centered for graphics, physics, lighting etc… and not for standard UI-only applications that don’t need all those game features.

For example, on Android (and probably other mobile OSs too), Unity will provide worse battery life than a regular Android Studio app.

Is it possible? Of course it is, and I encourage you to try.
In fact, there’s an entire gallery of non-game apps made with Unity: https://unity3d.com/showcase/gallery/non-games