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 The Dutch Republic:
'Show of Screens' is a play on 'Show of Hands': instead of raising your hand to vote, you can now use your iOS device to vote. Of course there is 'Yes' and 'No' and other options are available as well, we use it for Planning Poker.We created this app to help with our Scrum planning meetings where each participant has to vote one number of a predefined set. We tried multiple tools to facilitate that but too often something went wrong. Someone forgot a password, someone list his or her network connection, etc. None of these tools worked smoothly. Then we went back to a setup where each of us had a bunch of cards and when it was time to vote we just showed one of the cards. Now we have Show of Screens: no delays due to 'technical difficulties' anymore and we can just move on with our meeting.