Unfortunately we decided then to discontinue FastPdf+ as it would have been really hard and time consuming to rewrite it with modern requirements as it was conceived and developed back in 2010 and the revenues didn't provide adequate support to resume the developement.
We are sorry but we acknowledge that in order to be available in the App Store, apps should offer an adequate quality.
It's hard to let app go. I'm sure you'll find new applications that will be able to replace FastPdf+ in your daily use. We strongly recommend Apple's iBooks.
Thanks for the quick reply and explanation.
I'm very sorry to lose the use of your App, I really appreciated the
sideways swipe rather than the usual vertical scroll. I will keep my
eyes open just in case you ever decide to upgrade, but I realise that
business is business. Working for no profit is a mugs game.