價格：免費
檔案大小：7 MB
版本需求：需要 iOS 7.1 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Studies show that writing down what you’re grateful for each day can dramatically boost your happiness. Think Happy is a beautiful gratitude journal that makes it easy and delightful to track and visualize what makes you happy in life.
支援平台：iPhone