I too have seen these blogging platforms online that have the privacy setting to make it so that I can only see it. What is the difference between those and something like Day One or Dyrii? Control over my data. With Dyrii I know my data is on my iPhone or my Mac or the iCloud. With a blogging platform, is my data encrypted? Is my data on whatever server and is it safe? What happens if my account is hacked? I think with a platform like Dyrii, my data is much more secure.
Last weekend my internet went out for 9 hours, for the first time in my life. I couldn’t access anything web. Since I have 1-2 bars of cellular reception at home, I was ... really in the dark. Dyrii had all my entries and let me type in more entries. If I had those entries on a web platform, they’d be inaccessible. Sure, I could just wait but ... it was nice having all my entries.
Dyrii also makes it a lot easier to access all of my data - I can swipe months by and easily find stuff in the past. It reminds me of entries on this day in the past years.
I think the biggest thing is - I can use iCloud or local storage for my data - and know it is safe, accessible offline, and easily exported out to another application. With an online app my data isn’t easily exported, backed up, or moved.
It may cost more than the free blogging service online but, my thoughts are very private and personal to me and matter a lot to me.
Hope this helps.