Regarding the language, Wappointment is not yet translatable. We plan to do it soon. If you’re interested I will contact you once we have that ready.
Meanwhile, you can modify all of the public texts that your customers will see, from Wappointment > Settings.
For instance you can translate the interfaces of :
– the booking widget in Wappointment > Settings > General > Booking widget Editor
– The confirmation, reminders, cancellation emails in Wappointment > Settings > Emails & Reminders