The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From David Redshaw:
Swim Times uses the recommended calculation to convert swim times between long course times and short course times. The app uses the calculations provided by the UK ASA (Sport Systems conversion), US NCAA, US NFHS, Swim NZ and Swimming Australia.* Easy to use* Fast* Uses country-specific calculations (US, GB, AU, NZ)* Updated for IOS7* Optimised for iPhone 5, iPhone 5s, iPhone 5c retina display* Works offlineAlso supports conversions based on age and gender where the country conversion considers these as well as supporting 25yd conversions where appropriate.