Day One- Over the previous ten years I have enjoyed using this journaling app and just re-subscribed. I appreciate the attention to logging every detail that may be used in context with, well, the text I input. Details such as the music I was listening to, the location, weather, fitness activities and more.
Book Tracker- Quite simply, one of the best purchases I have made to remind me of what I have read that includes stats, reading progress, reading goals, what I plan to read next, track the physical library I have on my shelves, etc. Adding tags to help me catalog specifics such as what year I have read a book, and where it was consumed such as physical, Kindle, Kobo, audio, etc.