Where are screenshots stored?
They are stored in a storage area dedicated to the app on your device, as copies separate from your photo library. They are never sent to external servers.
What happens if I delete the app?
Images, categories, and notes saved in the app are also deleted. Before deleting the app, check whether there is anything you want to keep.
Will deleting the originals always free up storage?
Not always. Because copies remain in the app, free space may not increase right away, depending on how the Photos app handles recently deleted items.
Can I use the app if I don't allow access to my photos?
Yes, the app still opens without access. You can change the permission by following the instructions in Settings, or save images from the share menu and use them that way.