What do you mean by nailing?

System: IOS 15.4

Software Version: Nail 6.3.40

Nailing ding is a special message reminding method, and the mission will be achieved. Everyone can use it as long as there is a quota. Enter the D interface, enter a message, you can add attachments, set the reminder mode, you can choose whether to occur regularly and turn on the whisper mode, and click Send Complete.

Nail ding messages are divided into in-app ding, SMS ding, phone ding, whispering ding and timing ding; You can select one or more recipients. If the missing candidate is found after sending the ringtone, the ringtone message can be found on the mobile phone and the recipient can be added again.