Native applications are certainly easy to use and engagement with users is high. However, it has to be developed for iOS and Android respectively, and maintenance cost is high.
For the above problem, it is possible to develop hybrid applications that can be used on multiple platforms such as Titanium, Xamarin, PhoneGap. However, it only reduces the cost of developing for each platform, and does not make deployment easier.
Proposed there is Progressive Web Apps rather than Hybrid. Rather than creating a hybrid application that runs on each platform, making applications that run on the Web can realize a movement closer to native applications.
Also, Google has launched "WebAPK" that enables you to use WEB applications like ordinary Android applications for Android Chrome Dev and Chrome Canary.
