On October 2, 2019, Apple finishes the review of version 13.1.2 of PDF Notes S and it became Ready for Sale.
On October 1, 2019, I uploaded version 13.1.2 of PDF Notes S to App Store
App Store https://itunes.apple.com/app/id961336139
PDF Notes C is included in the cross license. (please refer to the cross license and PDF Notes C release note)