Hi @giuseppelala87,
APP
Gwangi is fully responsive on any mobile device but if you are looking for a way to make it into an app, be aware that it is not meant to be converted into a mobile app.
If you want to create a mobile app with WordPress, a solution might be to use a plugin made to serve/build an app with the content of your WordPress website. Some interesting projects are: AppPresser (https://apppresser.com/), WordApp Mobile App Plugin (https://wordpress.org/plugins/wordapp-mobile-app/), WPTouch (https://wordpress.org/plugins/wptouch/).
Hosting
A good hosting solution must fill these points:
– A Space according to your business (a lot of media need a big Space)
– Good Bandwidth
– SSL compatible (https)
– A good Uptime (So that your site is never offline) and response times
Our experience has shown us that WPEngine is probably the best hosting solution for WordPress:
Home
It’s not the most affordable, but customer service is fast, polite and above all very very very efficient, which is a major advantage.
Here is a good comparison of the best WordPress hosts on the market:
Best WordPress Hosting Providers of 2018 Compared
I hope you will find the right hosting solution for your project.
Best regards,