Update:
Just got off the phone with Jonathan at Apple Customer Svs. I told him the whole story about the LockBox app disappearing off iPad and my accidental deletion of LockBox on my iphone and not being able to find it on Apple apps to be able to reinstate it on my phone. I also told him about the complaints on this forum. He told me that third-party apps are not the responsibility of Apple and that we would have to reach out to the developer which someone in another thread said is GEE! technologies. While I was on the phone with him I searched for this company online and we couldn’t find any leads. I did say to him if Apple is allowing third-party apps in their App Store are they not vetted and researched before they’re allowed to be purchased or used for free? He said that’s a good point and something that needs to be brought up with his superiors. I told him I was concerned that a third-party has all my personal information, pass codes, passport numbers, drivers license numbers, ss no’s and on. We went through the process of me filling out a feedback/complaint form and submitting it to Apple. Apple says that they cannot reach out personally to each person, but the information will be looked at. He did say that bringing it to his attention and him sending on the information to his superiors should resolve this issue. I stated in my complaint that I am concerned about personal information being left with a third-party and that I would like my information to be able to be retrieved and the problem resolved. The only way to know if anything has changed is by constantly looking here or elsewhere online to see if Apple has done anything to resolve this issue. And Jonathan also said when you’re using a third-party app to store sensitive information you need to look at what risks you’re taking. I automatically assumed that because Apple offered the apps on their App Store that they were automatically vetted. He did not know what precautions Apple takes when offering third-party apps.
Jonathan then showed me that there is a password section in Settings on iPhone where you can look at your passwords and change them if you need to. It does not work the same as LockBox and does not allow you to do anything else other than save passwords.
Hope this helps some of you out there.