What app is causing this toast? Does anyone know what app is causing this "check network connection" toast?



Notes app shown below is unrelated as far as I know, the toast shows when I turn off my data regardless of what app is currently foregrounded.
This toast is generated by the Pinterest app whenever it tries to sync without a network connection. As far as I know, the only way to remove it is by uninstalling it. You could also try force-closing the app, but this toast is so uninformative and intrusive that I uninstalled Pinterest on principle.