I put Apple sign-in function in Emilia app. But today, I found out that Apple login was blocked for child accounts... Mine is of course a adult account, and the users who logged in in front of me were adults, so I didn't know about this problem at all... In the meantime, users under the age of 13 couldn't log in, so most of them might left...

It was developed to include Apple login in the iOS version and Google login in the Android version. But the design needs to be revised from beginning. Fortunately (?) The Google login function seems to have no age limit, but the iOS version has no choice but to modify it because it is impossible to give up child users.

However, the problem is that in order to add a custom membership sign-up function, ID and password must also be managed. And a phone number or email address is also managed for users who have forgotten the password. And a temporary password is also needed to be generated and sending text messages or e-mails features to confirm that the contact is valid. And functions that send, receive, and verify input must be implemented... For these functions, not only native app development, but also server logic and DB structure must be changed... It is development that must be done because child users cannot be abandoned, and I can do it. But it takes time and efforts.. ㅜㅜ