It might actually be complicated to point out any particular approach, but there can be some general rules or guiding points that will lead you in the right direction. Hire best iPhone Application Development Company that has experience in the industry that knows the gradations of the market and has recognized itself as a success, knows how to harbor to Android, BlackBerry, Plam Pre, J2ME; offers imminent on app marketing and more.
Ensure that the company you select has experience in developing iPhone applications. Confirm if they have listed any of their formerly developed applications and are they listed in the Apple Store, if there are any then follow the links and cross check them.
Also check if there are any screenshots accessible of their previous project works.
Gaze for hints of creativity in the company and make sure that they
are willing for original and fresh ideas, that they are ready to experiment and willing to offer you something different from normal, or even out of the box.
If they have a framework to make simple to use, appealing and creative application then it will work in your advantage. If they require in any of these, reluctant to go beyond the line and making something diverse, then it will be a waste of your time to deal with that company.
Support is another feature that is to be looked for. See if the company can offer you the required technical support, fixing bugs, and handling up gradation whenever you require.
Most of the time people not succeed to comprehend the significance of a selecting a company that deals in application development apart from
iPhone. There is more to the mobile application than just iPhone such
as Android, BlackBerry and Windows mobile. If you select a company that has knowledge and experience over these services as well, then it will prove to be more favorable to you.