價格：免費
檔案大小：23.8 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
Grayblock is an educational app for a public portal for investing in renewable energy through crowd funding. Investors earn equity like returns, through a new blockchain enabled financial product.
支援平台：iPhone, iPad