This is a project where you take multiple inputs from the user and add them to a database of some sort. Daybook is a good example of what you're going to build. Now you can build this in many different ways. I'm going to outline the path I would personally take. As for the database, there are many options, personally, I'd go with Supabase but feel free to use whatever you are comfortable with. - Source: dev.to / over 1 year ago

I've also tried a similar journaling app called Daybook , it offers for free multi-platform auto-sync (my first concern), offline mode and a dedicated mobile app. You can add images (but with a low resolution on the free plan), but no text formatting options. It's very simple and minimal. I didn't like the fact that you can download all your entries only in csv format, which is unreadable by a human (but you can... Source: about 2 years ago

When you said hopefully to include player campaign notes, I thought of kanka. It's somewhat less feature-rich, I think, but it is potentially-free and collaborative. Source: almost 2 years ago

Our group has been using Kanka (https://kanka.io/en) for the past few years and it’s been super helpful. Source: almost 2 years ago

Some people I know have recommended kanka: https://kanka.io/en. Source: about 2 years ago

I use Kanka, I’ve found it to be excellent. A few key points: - there are loads of different page types you can create, characters, locations, organisations, items, it’s quite varied. Although you can’t make custom ones I’ve never needed to. - you can easily link to other pages within your Kanka campaign by typing and @ followed by the name of the page, so @Barry will pop up a list for you to select from your... Source: over 2 years ago

I've also heard some pretty good things about Kanka (https://kanka.io/en), though I haven't tried it myself yet. Source: over 2 years ago