A Please check if any of the following apply to you.

1. I cannot log in with my ibisAccount (I would like to use the cloud or online gallery).
- https://ssl.ibis.ne.jp/faq/11/ibisPaintforiPad/4/25/

2. I cannot log in with X.
- https://ssl.ibis.ne.jp/faq/11/ibisPaintforiPad/6/16/

3. I cannot switch to another account and log in.
- https://ssl.ibis.ne.jp/faq/11/ibisPaintforiPad/4/4/

4. I cannot log in because I deleted the social networking service I was linked to.
- If you delete your SNS account, you will no longer be able to log in to your linked ibisPaint account.
If you plan to delete your SNS account, please delete your ibisPaint account first.