These updates add dark mode, improvements to Siri Shortcuts, and multi window support on iPadOS. Best of all, they are free updates for existing Cardhop for iOS and Fantastical 2 users.
SUPER IMPORTANT NOTE FOR FANTASTICAL 2 USERS: When updating to iOS 13 or iPadOS 13 you will be asked if you want to upgrade Reminders. Upgrading your reminders will cause them to stop working on any device not running iOS 13, iPadOS 13, or macOS Catalina! So, yes, this means your reminders will not work on iOS 12, macOS Mojave, or any older system version. macOS Catalina does not come out until next month, so please wait to upgrade your reminders if you use them on your Mac.
We hope you enjoy these updates!