Day One is my journaling app of choice. They’re branching out, offering printed journals if you want them. A brilliant move, but journals have a tendency to be kind of personal. Don’t worry, Day One’s got you covered:
The privacy of your printed journal is important to us, so we’ve created a printing process that is strictly confidential. All digital files are securely transferred to our printing facility. Printing is automated without any manual handling of the files. After printing is completed, your book is promptly packed, sealed, and shipped to your home. Any digital files used in the printing of your book are automatically deleted once this process is completed.
It’s up to you if you believe that. Either way, check out the sample journals, it looks pretty cool. I doubt it’ll fly though, but who knows?