OneNote is a great example. It has fairly well-regarded native apps for each platform it supports, _and_ a decent web (HTML5) interface. I think the issue is t

OneNote is a great example. It has fairly well-regarded native apps for each platform it supports, _and_ a decent web (HTML5) interface. I think the issue is time and resources. Small teams, like Slack, would like to create a slick experience but they don't have the time. Companies like Facebook went the other route -- HTML5 on mobile, got their fingers burnt, and went all-in on native. StackOverflow's iOS app appears to have improved a lot too, in v1 it was a thin shell around the web interface. I hope React Native catches on. I'm not a huge fan of how 'heavy' Electron is myself.