You probably guess game is the number one type of iPhone applications that people use most often. Today, MediaPost published a great article and mentioned you’re wrong. Game is not the type of iPhone application that are used most. Instead, it’s the Weather application that takes the top spot, followed by Facebook app.

According to an upcoming report on smartphone usage by online market research firm Compete, 39% of iPhone users cited weather-related apps as one of the three kinds of applications they use most frequently. (The Weather Channel app specifically was cited by 13%.)

A quarter of iPhone users said Facebook’s was one of three apps they accessed most often, followed by game apps, at 20%. More than 10% pointed to music-related apps. After that, the more than 100 individual apps or types of apps cited by users fell to single-digit percentages, with most less than 2%.

Is weather app your top most-used application? For me, definitely not. My top 5 most-used iPhone apps are:

  1. Mail
  2. Notes
  3. Safari
  4. Yahoo Messenger
  5. FaceBook

So, what iPhone application do you used most?