Date Camera can help you to add current date & time & note on your picture. You can change the color and size of date string, or change the date / time format. Moreover, you can add a note on date string, and you can change color of note.
You can type @where in note string to display locate name. Type @city to display city name. And type @loc to display latitude and longitude. (Need to turn on Internet or GPS to get location information)
You can also set camera relative function in setting page, such as flash turn on/off, self timer, special effect, camera resolution...
After you finish your shot, you can save it, or share it to your friends directly by press share icon. You can also browse the photos you took using the its photo browser.
P.S. You can also hide date or time information by setting its format to invisible. (Top item of format choice)