Tokyo Metro Co. is providing a free smartphone application to help foreigners navigate the capital's subway system.

Tokyo Subway Navigation for Tourists will be available for Android phones through Google Play on Tuesday and "sometime soon" for iPhones at Apple's App Store, Tokyo Metro spokesman Seiichi Yoneya said.

"We have heard complaints from foreign tourists that Tokyo's network is very complicated and thus difficult to use," Yoneya said. "The number of foreign travelers is expected to rise in light of the 2020 Summer Games. We have to offer a guide that enables them to travel the capital easily."