Whenever I remember 🤣, which is usually once every week or so. My data is usually just copies of life stuff like tax documents and backup keys, so I don’t add to it often and it doesn’t change much. I do keep one local copy and one in the cloud though. I think that’s important.

Thanks for the suggestions! I have been using Proton until now but have been unhappy with their app situation on iOS. I am giving Skiff a try.