OnTime is a message reminder application used to remind user and easing user to send response message to related buddy from their Gear device through ChatOn API service. This application is an integrated Gear application, consist of two parts: host-side OnTime provider and OnTime consumer. OnTime provider run on Android platform developed for setting reminders and input preset messages. User can create one time reminder, or whether to choose daily or weekly basis reminder, setting the reminder time, input the reminder message, and select reminder's ringtone and vibration style. After setting process completed, user can sync the setting data to Gear device by pushing a single sync button. Wait until the reminder triggered. Once the reminder triggered, user can dismiss the alarm and now the preset message list will appear. Select preset message to send message or cancel to finish the process.