http://threeacts.mrmeyer.com/25billionapps/act2/timer.pdf

First I subtract 6:27 from 6:28 and got 34,237, then you subtract 6:28 6:29 and got 34,026. Then finally subtract 6:29 6:30 and get 34,203.Add up 34,237 34,026 and 34,203 and then you divide by 3 and get 34,155 per minute. Subtract 25,000,000,000 from 24,658,610,211 and then you get 341,389,879 for every download. Then I divided 341,389,879 by 34,155 and got 9,995 minutes left to go. Then i divided 9,995 by 60 and got 166 hours left. Then you divide 166 by 24 and got 6 days left to download apps, before the 25th billion person wins. Get on March 2nd before 6:30.