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My KeePass worked great on my Android. I installed MiniKeePass on my iPhone X and the app doesn't allow the Id or password to populate for Chase Visa or LLBean Visa. MiniKeePass works on other credit cards, banks, financial institutions. What is the problem and how do I fix?

How do I access my keepass.kdbx file on my new iPhone? I had been copying-pasting the file from my PC onto my Android, although can't do with the iPhone. I don't own a MAC and would prefer not to send the file through the iCloud. I want to continue using KeePass on my PC and have access to the same database on the iPhone, any suggestions?