If I go with Responsive Web Design
SEO Needed
If you want to gain large exposure in terms of audience you would like to go for SEO and other services like page rankings and search engine rankings but as Mobile Applications are not crawled by the search engines, we cannot expect them to grab the audience who surf the web
Versions
Responsive Web Design works on a single version you just need to build the website and optimize across mobile devices whereas in mobile app you have to build one for website and other for mobile.
Globally Compatible
To ensure your presence in seen in the same across every device (computer, tablet, mobile phones) responsive is the route to take. This will cover all of your bases rather than having to worry about your app being available in its best form on only a few devices.
Read more@ https://xtensible.in/blog/2017/08/16/tough-competition-what-to-choo...