I am a new user to Diarium and am enjoying the experience so far.
A suggestion that may fall out of scope, however I do believe most users may find it helpful is to have interactive templates.
Imagine asking a set series of questions that would typically be a template, where the answers could be converted to tags, chained to a second question or fill in the blanks in a template.
e.g. a notification is received to start the daily reminder. Begins with: "How would you rate this day (1-5)" -> "5" -> "Great, what is an achievement from today" "e.g. to be added within template" -> "What is the biggest thing from today" -> "e.g to be added to a tag"
I could see many use/cases where this could help new users build a habit, or to remind to track certain information set up on different schedules.