What you can do with "Kids Diary"-You can easily enter and leave (going to and from the park) by simply holding the two-dimensional code over.Since it can be processed without touching the dedicated device, infection countermeasures are perfect.・ People with siblings can also stamp at once. You can reduce your busy time in the morning・ You can easily register your childs information.・ Easy to manage because it can be used on each parents smartphone・ Supports English