價格：免費
檔案大小：81.8 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
XTRA is an app to bridge the gap between an inflated economy and a lack of financial and social security. In times of adversity, this is when ingenuity blossoms. What XTRA brings to the market is an exchange: we reward user activity for earnings that then can be invested.
支援平台：iPhone