On Android, localization in Spanish, French, and German is offered. The PhotoCircle app should localize automatically based on your phone's language settings. To change your app-specific language settings, please refer to these instructions from Google.
On iPhone, only English is available today, but this may change in the future. If you have a particular language you would like to request, please contact PhtoCircle support by tapping “Chat with Us” at the bottom of this screen.