Markus Echterhoff

If you have made your BuddyPress multilingual by installing it on a multisite WordPress with a different language for each site, you will find that the extended profile field names are available in only one language. Activate this plugin on any of your localized sub-sites (or network activate), go to
<pre><code>Dashboard -> Users -> XProfile Translation
</code></pre>
and translate the profile field names and descriptions to your liking. This plugin is BP_ENABLE_MULTIBLOG compatible.

BuddyPress Extended Profile Translation

Multilingual Extended Profiles in multisite BuddyPress

Planet Studio

WPC Simple Translate allows you to translate multilingual WordPress site.
It’s allows you to translate texts in places where other popular plugins usually have difficulty translating and you have to duplicate and keep the same slider, form, gallery, page builders widgets… in different languages.
Easy translate helps you to translate everything despite of themes or plugins specifications.
Currently it is working with Polylang and WPML plugins using plugins just for detecting frontend language.
Features 
Easy to use 
Fully compatible with all themes and plugins 
Ability to translate dynamic strings added by WordPress, plugins and themes. 
You can use as many languages as you want. 
It is easy to use, just put your texts in bellow format

WPC Simple Translate

Displays "Please install WPML or Polylang plugin to start using WPC Simple Translate plugin." and not working without them. Another one dummy plugin decoy for paid and expensive plugins! But idea to separate the same text to different translations is very good.

Not working without other commercial plugins

Translate texts in content, slider, form, gallery, page builders widgets... in different languages.  [:en]Hello[:fr]Bonjour[:]

BuddyPress Extended Profile Translation vs WPC Simple Translate