Your data is your business, therefore Structured does not store or sell any of your private data.
However, to help improve the app and identify problems or bugs, the app automatically collects very limited and anonymous analytics data in iCloud.
In case you prefer not to share anonymous analytics, you can deactivate this option in the app settings. Simply open the ⚙️ Structured Settings and select the Analytics section. Here, you can deselect the option Share Anonymous Analytics.