I have android. For me when it comes to HTML5 games today, I would rather not convert to any platform as a native app but keep it in the browser. HTML5 browser apps and games are a huge thing and are only growing larger and larger as time goes by. I would rather open a page, change orientation and start playing, no downloading or installing the app. Of course, you will most likely still need two version of your game, one for mobile displays another for desktop displays(or s scale manager) but it's s small compromise and much better than requiring 2 types of audio files, build tools/proceess to convert to an apk, exe, dmg or an ios app.
I'm not saying it's redundant to convert to these platforms, in fact, it can still be very important to have native apps but the alternative to me is easier on the developer and still targets all platforms.