Safe. Fingertip music learning is a learning tool under Hujiang. Hujiang Education Technology (Shanghai) Co., Ltd. (formerly known as Shanghai Mutual Plus Culture Development Co., Ltd.), established in 2009, is a member of Hujiang Education Technology, located in Shanghai, and is an enterprise focusing on technology promotion and application services. The enterprise is legally registered and certified by the Ministry of Industry and Information Technology, and holds formal and legal business certificates. It is a legal enterprise, so it is safe.