My partner and I have been looking for something like this for ages. We wanted a place that's just ours, so stuff doesn't get lost in our main chat.
The widget is what sold me. When she sends a photo or a little doodle, it just shows up on my Home Screen. I don't have to open anything. We've also been working through the quizzes. You each answer on your own and then see both answers side by side. Petty Debates almost started an actual fight lol.
I also like that one person made it without investors, and you can tell they care. There's the shared note, countdowns, a bunch of widgets and a cute little cat, but it doesn't feel cluttered. The free version is plenty to start with, and if you upgrade, one Premium plan covers both of you, which is how it should work.
If you're in a relationship, long distance or not, give it a try. 5 stars from me.