Certainly! Web solutions in today's day and age almost demands the use of mobile phones.

It is important that you recognise that your app idea isn't a mobile version of a website you have in mind. Also it's important in most cases - to have a web version of your app up and running. If you haven't already noticed most apps actually have a website version online. When it comes to app development, like any software development solution, it requires lots of time and a thorough analysis.