If one is a person of technical mind; one can make money by developing a paid app for any of the mobile platforms. Thus the best option to make use of your expertise and still make money is by identifying the platform which can be either Apple, iPhone or iPad or Android and thereafter one can work as per the specifications and thought process to develop the platform.
Now the crucial part which comes is that what should be the price of the app and one can figure out the same by searching for the Google search terms data for the type of app one is making. Higher the number of people searching for the info to which app is catering; higher can be the price. It will be worthwhile to note this fact that the average price of the top 100 apps in Android is 2.5 times that of iPhone apps. Thus one can safely conclude that if one has a useful app than one can make more money with apple as compared to IPhone. One can check out IPhone App for Stock Tracker and make money with online trading.