The three terminals of attendance machine, web and mobile app are interconnected, with intelligent data exchange; through mobile app, employees can check their attendance anytime and anywhere; through mobile app, the boss can check the company's attendance anytime and anywhere; through mobile app, employees can easily complete applications for leave, business trip, etc.; managers can check the company's attendance anytime and anywhere, and approve employees' applications for leave, business trip, etc.; this product Suitable for small and medium-sized enterprises, chain stores, branches, offices and other places attendance.