To remember your progress, Pantastic stores your saved tips, your streak, your daily allowance, the number of rounds played and fixes done, your unit choice and your notification settings on your device (in UserDefaults and an App Group shared with the Pantastic widget on the same device). We have no server that stores them, so we can't see, sell or share them. Deleting the app removes them.
The daily tip (at the time you choose, at most one a day) and the reminder the day before a free trial ends are local notifications scheduled on your device; nothing is sent from a server. The trial reminder's text, with your own figures such as tips saved, is put together on the device. You can turn both off in Pantastic's Settings, and all its notifications in Settings › Notifications › Pantastic.
Pantastic doesn't use your location: units follow your device's region setting, read on the device.