ChatWork for iPhoneYou may log in with your Facebook account but not with your Google or Twitter accounts.
ChatWork for AndroidYou may not log in with your Facebook, Google or Twitter accounts.
[ NOTICE ]
When logging in to the ChatWork app, you must input the e-mail address and password you submitted when creating your account.
You may also confirm the login e-mail address by accessing "Setting Login Credentials" page.
If you have forgotten your password, you may reset your password by going to that same page.