⚠️ ?? Do not trust Day One or Bloom Built Inc.
Ive been a Day One user since March 2013. I successfully synced with iCloud and Dropbox, as did many other customers based on recent reviews that criticize your unethical behavior. Basically, you advertised and sold an app that allegedly had glitches so you rebuilt the app eliminating features customers previously paid for. You now charge customers to use your proprietary syncing service. The ethical solution would have been to continue allowing customers -- like me -- (who paid for and successfully utilized iCloud and Dropbox) to resume syncing with those 3rd party services. Instead you took the unethical route and rolled out an update that forces customers to use your syncing service, added new functionality (multiple journals) then as time passed, started charging (bait-and-switch) for your syncing service and to access the new features. I now have multiple journals I cannot access, and I no longer can sync between devices without paying for "Day One Premium". I was already a Day One plus user and now you want to charge me more.
Day One will propose using Day One Classic to continue syncing with Dropbox. Again, another example of how disconnected they are from the end users (customers). Day One Classic does not support the journal entries created in the subsequent version -- namely, multiple photos per journal entry.
Day One Journal, v2.3.5