Iphone 6+ have app changed password cannot use OOMA on Iphon

The other day for some reason I could not log into my acct[OOMA] so I changed the password and viola! no problem. I had just reset the password and on line worked perfectly. Shortly afterward I tried to use my Iphone OOMA app and it said password incorrect. I tried everything. I forced shut phone to remove cash and then removed the app and downloaded from the app store again. same problem It worked before[the app] now since I changed the password on OOMA the app does not see the reset. HELP!!!