Daily time challenge

I love the app, but the daily time challenge is too easy to cheat at. Just start it, solve almost to completion - but before entering the last letter, exit the app and start again. It then becomes a "how fast can you type" challenge instead of how fast to solve. Those with 2 devices and copies of the app will always be able to "cheat" (they probably cheat at solitaire too). Id say once you start a daily challenge, you either finish it or lose your chance to submit an "official" score that day.

Another improvement would be to show a distribution of # users by solution time to see what percentile your solution time falls in if you did not make the top ten.

iCheat about CryptoQuote