APP RECOMMENDATION: BEST JOURNAL
I found the potentially best digital bullet journal for Android! It is very new but already has lots of potential. It has a lot of room for improvement and I think more people should know about it.
It's called Best Journal.
"Best Journal is a diary hand account app recording life.
You can use it to write diaries, read books, make memos, travel strategies, beauty tips, etc.
[massive materials]
Exquisite templates - many exquisite templates, direct use, welfare of the disabled
Massive materials - Super many wallpapers, stickers, tapes and other materials
Free fonts - dozens of handwritten fonts for you to write
[simple creation]
Free typesetting - drag and drop pictures and text at will, free typesetting
Doodle at will - bring your own brush and tape functions, and draw at will
We value your privacy and will not store any of your personal data. They are completely under your control.
Best Journal makes your life more happy and comfortably."
I'm not sure if it is available on iOS but you can download it on Google Play Store!
Here are some of the screenshot from the developer themselves. And just a disclaimer, I'm in no way related to the developer/s. I just want more people to know about this app because I searched for information and reviews about it from other users but found none.