We're sorry. This app has no dedicated feature for migrating to other apps.
It does have a data export feature whose output you can use in other services.
However, this is part of the paid Premium Plan. Subscribe to the Premium Plan from "Premium Service" in the settings screen, and "Data Export" in the settings screen becomes available for exporting your note and diary data.
When exporting, you can choose "All Time" or "Selected Period" (with a "Start Date" and "End Date") under "Data Period". The exported data is a zip file containing a text file (.txt) for each note or diary entry. Photos attached to your diary entries are also included in the zip file as image files. You can share the zip file in many ways, such as attaching it to an email or saving it to Google Drive.