We designed ODK to work all over the world and supporting multiple languages inside each tool has always been an important goal. With the community's help, we've made great progress. For example, ODK Collect has been localized into seventeen languages!
We think the current localization process is a little cumbersome, so today, in partnership with Nafundi, we are launching a new easy-to-use process to improve on and add to these seventeen translations.
If you speak English and another language (especially Swahili, Hindi, Portuguese, Hausa, or Indonesian) our users need your help. Please go to https://transifex.com/projects/p/odk-collect, and sign up to improve on, or add a translation.