Hello,
my name is Guillaume Coulaud and i'm developer of WScreenPro,
if you want more information about WScreenPro, please contact me by mail.
i working on android version of this app.
If you want a pattern Generator (iOS) you can find it on iTunes store (mire generator).
https://itunes.apple.com/app/mire-generator/id460365609?mt=8
Guillaume
My English is poor, I'm french, sorry ^ ^ .