價格：免費
檔案大小：17.5 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
“We exist to empower people to live active lives they enjoy, so that the journey is appreciated and the benefits are lived!”
Founded and incorporated in 2005 by personal trainer Damian Lockhart, Xelf has remained true to its vision of empowering people to live an active life that they enjoy. Xelf is the word ‘Flex’ spelt backwards because the only lasting results come from within. As exercise coaches/personal trainers, we aim to not only provide our members with temporary exercise motivation, but also to create internal motivation and independence within them.
支援平台：iPhone, iPad