Soongmun Middle and High School Alumni Association-only membership notebook application. The main function is 1. You can use only the smartphone application, and you can also use the pc homepage linked with the application.You can create and use a separate application for each affiliated club within the Soongmoon Middle and High School Alumni Association.You can continue to use the Soongmun Middle and High School Alumni Associations affiliated meetings with one login. 3. The administrator can manage members by group. 4. Posts can be sent by push notification by selecting all members or groups. (Free) 5. If you register photos and articles taken in the smartphone application, they are also registered on the website at the same time. 5. You can aggregate the results of surveys and voting in real time, such as attendance at the event, and check the status of respondents by item. 6. If you search for and select a member in the member list, you can see photos and contacts, and you can send it immediately by selecting a phone or email. (No separate membership booklet required) 7. When registering as a member, it is notified to the administrator, and if the administrator approves it, the notification is sent to the subscriber immediately. 8. You can also send congratulatory and condolence texts (sms) to all members for free (marriage, obituary).