價格：免費
檔案大小：3.4 MB
版本需求：需要 iOS 10.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
When a symbol loses its meaning and power for an individual or culture, it becomes a dead symbol. By learning the history and meaning of common symbols we can create a more communicative visual language.
支援平台：iPhone, iPad