Is there any mobile phone software that can count how many text messages have been sent to whom?

Yes! I wonder if your mobile phone is smart? If it is the best, it may be a bit difficult if it is not. If so, you should download a software. The best version is the new version after 3 months ago, and the latest version is the best. I remember which software I didn't support three months ago. New support. You download-install-then fill in your information and enter the main interface. Find out which is the SMS fee, and just go in and have a look. Remember, if you want to use any software, it is best to open a GPRS package. Otherwise, you will be miserable. Ask if you don't understand.