價格：免費
檔案大小：79.6 MB
版本需求：需要 iOS 9.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
WTTapp is a private and secure app meant to be used by the participants of the Walk the Talk Challenge 2018 in Europe. Participants can use the app to submit the number of steps they take through walking, running, biking or swimming and can interact with other participants, sharing photos and videos.
支援平台：iPhone, iPad