I have been journaling since the old Palm days. I used Natara DayNotez on Palm. I began using it in 2000 and used it for 18 years; until I was forced to transition to Android.
When I transitioned to Android, I found Journey in 2018. Currently, I use the Journey app on android phone and windows PC.
The size of the Journey data is reported at 2.44 GB of storage. I have over 10 thousand entries.
I am somewhat satisfied with Journey to input entries, but not to retrieve them. The search function of Journey is VERY limited! (that is a BIG understatement!).
With so many entries, I need a more powerful search function to search for my entries.
Your search function is better than Journey, but still limited. Curiously, the best practice of the search function I have seen on a Journaling app is the Natara DayNotez for Palm!!!
You can take a peek of DayNotez search function in this video:
Please beef up your search function to something in the neighborhood of Natara DayNotez.