SoftBank Mobile
WAP saw major success in Japan. While the largest operator NTT DoCoMo did not use WAP in favor of its in-house system i-mode, rival operators KDDI (au) and SoftBank Mobile (previously Vodafone Japan) both successfully deployed WAP technology. In particular, (au)'s chakuuta/chakumovie (ringtone song/ringtone movie) services were based on WAP. Like in Europe, WAP and i-mode usage declined in the 2010s as HTML-capable smartphones became popular in Japan.