A The method for changing the account name depends on the account you use for login.
For more information, please check the following.

• ibisAccount
  
  1. Access the following URL:
     https://account.ibis.ne.jp
  2. Tap “Login” in the upper right corner. (Or tap the hamburger menu in the upper right corner and tap “Login”.)
  3. Enter your email address and password, and tap “Login”.
  4. Tap “Account Information” in the upper left corner. (Or tap the hamburger menu in the upper left corner and select “Account Information”.)
  5. Enter a new username in the "Nickname" field and tap “Save”.


• Apple Account
  
  1. On the Apple Account website, go to “Apps and websites that use Apple Account” → “ibisPaint” → “Stop using Apple Account”.
  2. Log in to the ibisPaint app again.
  3. When the name input screen appears, enter your desired name.


• X / Facebook
  The username you are registered with on these services will be displayed in ibisPaint's Online Gallery, so if you change the settings on these services, the username shown in the Online Gallery will also change. Changing your account name will not erase your artworks.
  

If the updated name does not appear after completing the steps above, please try logging out of ibisPaint and then logging back in.