On September 20, 2017, Apple finished the review of version 11.0.0 of PDF Notes S and it became Ready For Sale.
On September 19, 2017, I uploaded version 11.0.0 of PDF Notes S to App Store
App Store https://itunes.apple.com/app/id961336139
As I described before, PDF Notes S has been upgraded from Files 10 app; I had to release it although it's not yet ready for market because of no annotation, under developing yet, and etc.
Therefore, I set the start price of license subscription low so that it will be great for you to buy the subscription with lower price instead of the higher price in the future.
App Preview & Screenshots for iPad Pro 12.9
App Preview & Screenshots for iPhone 7 plus