A very good question was asked by those from pewinternet, and in the image above you have the results. They asked over 2000 people what they use most often on their mobile phone and the photo recording function came out on top. It is followed by writing messages, accessing the Internet, e-mail, recording video content, downloading applications, accessing information about health and finally we arrive at checking the bank account.
The study was of course done in the USA, the results are compared with those recorded two years ago, and the most spectacular growth we have in terms of accessing emails from one's own mobile phone. To be honest, my priorities are different and accessing the Internet takes by far the first position, but I'm curious if the above information fits your case.
