Technology is increasingly lending a helping hand, though, and now, a Beijing-based online education startup has developed an artificial intelligence-powered math app that can check children’s arithmetic problems through a simple snap of a photo. Based on the image and its internal database, the app automatically checks whether the answers are right or wrong. Known as Xiaoyuan Kousuan, the free app launched by the online education firm [Yuanfudao](https://www.yuanfudao.com/), has gained increasing popularity in China since its launch a year ago. It claims to have checked an average of 70 million arithmetic problems per day, saving users around 40,000 hours of time in total. Yuanfudao’s flagship app covers different subjects including math, English, and chemistry. Li said the firm has built a database with student answers to 6 billion questions. He said this know-how has enabled Yuanfudao to better analyze individual students, helping it towards the ultimate goal of providing tailor-made courses and homework.