"爱 思 助手" (Ài Sī Zhù Shǒu) translates to "Ai Si Assistant" in English. It seems to be a Chinese-language name for a software tool or application, potentially an assistant program related to AI or a specific service. Based on the name alone, "爱 思" could refer to the brand or developer, and "助手" means "assistant," https://itooks.com/