How to make Wordpress custom field input text translatable with qTranslate X?
Just use the inline syntax when adding the value on your input fielde.g.
you can use this on input field value[:en]Text Here for English Translation[:de]Text Here for German Translation[:es]Text Here for Spanish Translation[:] other inline syntax though I bet the input validator won't accept this tags<!--:en-->English Text<!--:--><!--:de-->Deutsch<!--:-->You can read more info from here https://qtranslatexteam.wordpress.com/faq/#CustomFields