I think it's still generally the case that Kivy apps tend to use the default (clunky) theme or something more custom, but there has recently been some user activity around alternatives, e.g. a set material design themed widgets (https://github.com/kivymd/KivyMD). I'm not sure if any apps using this have been published on the Play store.

We've been discussing how to include more unified themeing capabilities in Kivy itself, ideally as a big new feature in the upcoming 2.0 release.

Edit: I wrote a post at http://inclem.net/2016/01/15/kivy/kivy_android_app_showcase/ about some of the best published Kivy apps including themeing considerations, although they don't aim for a standard Android UI either. I see in your edit you've already seen this though.

For those seeking screenshots, i have found https://kivymd.github.io/

This definitively looks interesting. I had previously tested kivy and only had little issues with pyjnius and font sizes as switching between versions. More modern looks sounds great, might the resurrect that old project.

Hi, I'm the main developer of KivyMD, very cool to see it pop up here!.

I must warn that it's still in alpha status, although being used to develop business applications. Any bug reports and PRs are appreciated, and anyone has any questions, just shoot!

I think game-like style is not typical for Kivy apps which do not aim to be games, though looking native has not been Kivy's goal either.

I've recently released Viorise, a video rank tracker aimed for desktop platforms (https://viorise.com), though it may also qualify as an Android UI, I've followed Material Design guidelines for most of the widgets and the overall layout of the app.

There have been some proposals for theming (https://github.com/kivy/kivy/issues/691), but none of them were truly favored by the community. There are also a couple of third-party approaches like KivyMD, or FlatKivy. What they lack is a swappable theme, since there is no true theming support, they are just styled widgets.

Finding a good way to make a declared theme independent from widgets, but still keeping it customizable at runtime has been our main issue. The difficulty comes from theming being much more than a backgorund color, we should also be able to define certain behaviors and interactions, animations etc. These are rather easy and IMHO pleasant to achieve in the scope of widgets, but we haven't yet found a good way to decouple them.

It sounds like something like CSS would be really useful.

I'm using it to develop www.trebel.la, which will hopefully be out on the App Store this fall. But it also has a pretty unconventional (game-like) UI. IMO, if I wanted to build something that was well served by standard Android or iOS widgets, I would just write native apps. Kivy will never look or feel just like a native app, but since it has evolved from a game engine, it's a great choice for apps like mine that are part game, part standard UI.

> but since it has evolved from a game engine,

Just to note, Kivy didn't evolve from a game engine, it began as PyMT (of which it's a spiritual successor) which was a gui toolkit targeting multitouch and NUI. In fact, the support for Android and iOS came later, and they work because the original design of the toolkit, with flexible backend providers and an opengl interface, did work out well for cross-platform use.

My bad! I assumed it was based on pygame since the pygame provider was so integral to Kivy before the SDL migration.

ProcessCraft : https://www.youtube.com/watch?v=MAYW-4ZM7p4

but all theming and look and feel was done internally by ShowGen i believe. Its a nice looking app though.