Hidden SMS Logger

there is always times that you hand over you phone to another person to show him/her something but you worry about your SMS and you don't want him/her to read you SMS.so you could use this app.it logs your incoming and outgoing SMS in a safe place.
to install it :
1.download and install the app
2.open the app or open from menu(you should open the for first time so it will be activated and will be active even with phone restart)
3.click on "Settings" and then click on "Enter A Number"
4. set a number for lunching this program from Dial Pad.(so no one could access it except you).
5.click "OK"
6. press undo button to exit.
usage :
this program is hidden from your menu so for lunching it :
1.make a call to secret code from dial pad
** the default lunch code is : 5942