What is StageCalc?
StageCalc is an iPhone app used in stage rally competition to calculate the cumulative stage time for a single competitor.

Why would you want to do that?
In stage rally competition, the score for the rally is determined by adding each completed stage times.

Why can't you just use a regular calculator?
Because there are 60 seconds in a minute, 60 minutes in an hour and 24 hours in a day. Regular calculators can't add time values; StageCalc can.

What devices does StageCalc run on?
iPhone, iPod touch and iPad.

How do you use it?
You enter the stage time value, then press "+". This associates the stage time value with the next available stage slot. The stage slot number, stage time value and the cumulative stage time up to that slot are displayed.

If you have only the stage finish and start times, you can calculate the stage time value using StageCalc and then enter the time into the stage list.

How would I use this during a rally?
You complete the stage and get your timecard back from the Finish Control marshal. Enter the stage finish time, say, 15:45:21.1. Press '-', then enter stage start time, say, 15:37:00. The '-' button has changed to '='. Press '=' and the stage time is calculated and displayed. Then press '+' to enter the stage time into the next available slot. Repeat for each stage. As noted above, each stage time and the cumulative stage times are displayed. Compare times against your competitors. Road points can be added as stage times.