There is very little incentive for the developers to invest a lot of work to end up with an app that can only be used on IOS, where currently the web app can be used on most platforms. I am sure they would far rather spend that effort on improving the current web app.
A native app for which platform? IOS? Android? Windows? Methinks you know not what you ask.
For me personally iOS, but I kept the question generic so it would be applicable to more than one platform.
There is very little incentive for the developers to invest a lot of work to end up with an app that can only be used on IOS, where currently the web app can be used on most platforms. I am sure they would far rather spend that effort on improving the current web app.