It is easy to translate the texts in a form. First, make a copy of the initial form, see FAQ: How do I COPY a form?. You can then translate all the Labels, Placeholder texts and Help texts in the Element Properties panel. If there are any Validation formulas in your form, you should also translate the messages in these. When you change an element’s Label, you should take care not to change its Element ID, in case this is used in a formula. You can prevent this by opening the Designer in Minor Edit Mode, where the form version is either Published or has existing data.
The message “Mandatory”, the Summary page, and the Next app are at present only available in English. So are the Zegeba Dashboard and Designer modules.