there is a option to upload your saves to the cloud, and then load them on a new device or version of the app.
Look on save page its called Upload sync, the app will give you a code you need to put on the new version when you click on download sync in load saves page.
The server only save your sync for an hour so take care of do this right after installing a new version.
If you need more help with this, please enter my discord and i will help you more detailed