All data entered into the app is only ever sent to the domains specified by the user through the use of shortcuts. No data about the user, their behavior or device is ever collected or sent to the developer or any other third-party as part of this app. The only exception to this is crash reporting (see below).
The app uses the third-party service Bugsnag to collect crash reports. This serves the purpose of discovering and fixing bugs in the app. The collected data contains basic information about the device and the type of crash. No personal information such as usernames, email addresses, IP addresses or physical location is collected. The crash data is automatically deleted after 7 days.
The user has the option to opt-out of the sending of these crash reports by changing their settings in the app.
If the app is installed from F-Droid then there is no crash reporting at all.