The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.
Covering latest version
Switch language, currency and your client area template basing on a customer's location.
Automatically detects a visitor's location by IP and sets the language and/or currency you defined for his particular country.
Fully supported Automatic Currency Selection WHMCS! The customers currency is detected automatically during their first order and set, so they always get to pay in their own currency!
Here you get a German translation of all WHMCS E-Mail Templates
Peter Floros @peter4841
Incredible. Just added it and so far, so good. Will be a game changer for my Greek speaking customers. Thank you for the contribution! If it's not 100%, or needs improvements, please DM me. I'd love to have myself and my web team contribute updates as we go along.