科学上网名称：快照
新一代流行的通信软件。消息中发送的图片设有极短的时间限制，好友在预定的时间内收到后会自动删除，这种功能通常被称为阅后即焚。
目前支持：iOS苹果手机，Android安卓手机，黑莓手机，Windows手机，Asha诺基亚手机，Windows电脑和MacOS苹果电脑。
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