Sensitive Altimeter. This Android application measures air pressure using internal barometric sensor in the portable device and displays it on a three-pointer altitude indicator similar to the altimeter gauge in aircraft. Digital indication is also available.
It can take a long time. Some employers move very quickly, and others move very slowly. People have been hired three hours or three months (or more) after interviewing. Moreover, hiring nearly always takes longer than employers expect it will; you should generally double or triple whatever timeline they give you.
If you got a interview friday you should either be told on friday you got the job or monday or tuesday. Unless they are holding out for the candidate they want maximum should be 3 days in my opinion. In other words if they want you to work there they will let you know.