adamxcl - 1:48 am on Oct 11, 2013 (gmt 0)
If you are talking about a web app, than the tools vary and it's pretty simple over all. Coming from a webmaster side, it is straightforward.
When I ventured into apps in 2009, I wanted to do this but then you are still forced to drive traffic from your own website or sources. You don't get found in the native app stores in searches. You are never exposed to the people that are just on those devices. And that world is growing. I bought a lot of books, played with sample code and just started making changes to see what happened. Taught myself over time.
It has gotten very hard to get a web app, html page app through Apple as they want a real native Xcode built app. If their reviewer sees you are just html type of pages, a web app, you won't get through.
Android doesn't have a review system or quality control so you can pretty much do anything there. Build a simple webview inside a real Android app and go. Reviews from users may not be as good though.
In my case, I wanted to drive people from the native app world to my brand and website. And drive people from my website to possibly get a app. I think that is the best of both worlds if you can do it.