The key file can’t be import from the mobile locally in iOS 13. It can be imported via iTunes.
Dear Eddy,please contact us via mail with your problem. We are already working on a fix / Testversion, which you could get first hand.Thank you for your feedback &As soon as this is fixed:Please, PLEASE update your review, as this app is not financing itself unfortunately so mostly our own free time & heart goes into developing it further and answering customers questions / requests.Best regards,Elena @ KeePass Touch