Hello! With iOS11 and the new iPad Pro I am exploring the possibility of having iOS as my main OS and going mostly iPad-iPhone for computing with a little macOS on the side. But using my current way of doing things then I would want to have a secure password locker that worked on both iOS and macOS. However the Apple encrypted disk images don't open on iOS as far as I know. And Viivo just went end of life... I don't want to rely on 1password or Apple passwords because neither of them are 100% reliable and I don't want to pay a subscription fee for saving my passwords. So are there any good solutions for encrypting files easily that works on both iOS and macOS? Thanks!