[tuxracer]

FYI Tab Bars are now recommended by Google for Android as well http://www.androidauthority.com/bottom-navigation-material-d... There is a lot of data that shows hamburger menus create big discoverability issues and Google highly discourages uses them now.

So if anything the general layout of an iOS app would meet the latest Android Design Guidelines quite well. There may be certain "iOSy" things left like very blurry backgrounds but overall there's little reason to have a different UI layout across platforms at this point.

[LeoNatan25]

I think the main issue is that since the Android guidelines have changed so many times in a short period of time, it makes it very confusing to follow the latest ones. Add on top of that even Google's own apps fail at following some of the most established Material Design guidelines, it is very difficult to have proper examples to look at when trying to design an Android app.

[tuxracer]

That's very true Google has never been as disciplined when it comes to design guidelines. But aside from purity to specific guidelines there is a lot of data that show hamburger menus are death for discoverability of whatever is tucked away in them. Google has been slowly moving away from that direction for years first with the removal of the hardware menu button. As far as tabs go, having tabs, and on the bottom, is tremendously helpful especially on larger screen devices. All things Apple has likely known all along and hence their original design guidelines that Google seems to be adopting more and more of over time.