Yes, the Pre-Order app can work with the language apps on your Shopify store. Currently, these are the apps we have tested it to work with:
Langify
Translate & Currency - Langshop
If you are using any of the language apps listed above, please contact our support so we can assist you in setting up the pre-order app.
If you are using any language app that is not listed above, please reach out to us for help.