Can the messages change language automatically per customer.

 MinMaxify currently does not offer this option

What we can suggest is you can enter the message in other languages so it can cater to all your customers. You can translate the messages in different languages on our Message settings page so they all appear on the pop-up box. Please see the screenshot below

We have had customers who had success with this task by installing the Langify application but this is not supported by MinMaxify support.

Please contact Langify Application Developers. You can check out the application by clicking this link