I have been complaining about their terrible service. However, I just noticed that now it only takes one day to have their replay and they actually answer my questions! Im so impressed and I think they are working hard to improve their service.
They have promised an end-to-end encryption since they forced users to use their DayOne sync. The DayOne sync works well. However, without the end-to-end encryption, users data are openly available to any person who has access to DayOnes server. That is, anyone in DayOne or his/her friends can read your dairy, for fun or for any other reason. Of course they promised that only some key employees can access to your data in a certain situation. But it is just a "promise". They also promised to have the end-to-end encryption by May 2016 and now its October, did they keep their promise? Not to say if their server is hacked, all your personal information, your diary and secret are all available to anyone on the internet.
I like this app, it is no doubt the best journal app in the market. Good design, good functionality, and now, good service. However, without the end-to-end encryption, I dont feel safe having my personal data and diary on their server, especially with their record of not keeping the promise.