So, I have to develop a mobile application and I want to use Phonegap or Titanium but I need advice about those technologies...
Are they for free? What are their limitations?
I don't really understand them and I want to have more information before I start coding...
Thanks!
Both Phonegap and Titanium are free for developing mobile application and to develop apps using Titanium, you should need basic knowledge in javascript since it is simple javascript combined with Titanium API while we can use most of web technologies like HTML, Javascript, CSS etc. It's purely depend on what type of application you want to create. More simply if you want to create simple app that does not contain graphs and drawings you can simply use Titanium but if your app contains graphs you should use Phonegap.
Please refer the following links. Each can answer your question.
You can see the pricing and plans below:
Update: Appcelerator has updated their pricing and it is not free right now. You need to pay $39 for getting an indie seat in Appcelerator.