Last but not the least, there is Kanchoo. It is also an app developer online where you can create an app in around 5 minutes. What separates Kanchoo from the rest is that it is direct to the point. Businesses can easily create apps and upload them to iTunes in a short time. Also, Kanchoo allows ads in their mobile applications. This is a great source of income for both individuals and businesses.
Same thing with business, if you have an objective, you measure its winning in most specific way possible. Any objective that you have like when you think about putting an app in the store or catalogue, you should think about measurable objectives.