Hi
It depends on what devices you want to build for and whether your going for a web app or native IOS or android.
if you want to develop for Apple you will need a Apple developers licence which is $99 a year. Then you need to build your apps using mobione’s builder. You will need to sort out your provisioning profiles and developers certificate and private keys. there is info at the following links
http://www.genuitec.com/mobile/docs/appledigitalsignature/appledigitalsignature.html
http://www.genuitec.com/mobile/docs/buildiosapp/buildiosapp.html
Its not easy, Apple make it very complex. I ended up printing off the info and going through it line by line until i got it to work. Be prepared for lots of tears and tantrums.
After you have built your app you then need to submit your app to the app store using itunes connect and Apples application uploader using a Mac. You can also use appuploader.com if you don’t have access to a mac.
see here for more details
http://www.genuitec.com/support-genuitec/viewtopic.php?f=19&t=2557
I’ve not developed a android app but apparently much simpler.
hope that helps
Paul
There is no need to use big fonts we can read normal fonts just fine