I admit, I don't do a lot of native mobile development, but of course I have participated in the production of many mobile apps, mostly servicing middle and back-end tiers using JavaScript and Node (because I specialize in JavaScript). For instance, I wrote a bunch of the code the powers mobile notifications for mobile apps connected to the Adobe Creative Cloud.

One of the biggest problems I saw with maintaining separate apps was that we struggled to keep feature parity across the products, and that would frustrate our users when they switched back and forth between the web app and the mobile apps. Features they depended on in the web app didn't exist in the native app or vice verse.

Yet another compelling reason to choose the universal web platform technology.