Pixy Mood Tracker

Honestly, you can just use the habit tracking app.

Loop Habits Tracker is a good one.
You just create a measurable habit and use 1-10 scale for your mood tracking.

• It does have the option for notes but no tags unfortunately.
• You can add entries retrospectively.
• It has nice data visualization and you can export data.
• Since it's a habit tracker it's pretty private. You can name your mood tracker (habit) however you want, nobody can even tell it's a mood tracker.

Also interested in this. Though I’ve been thinking about writing a bash script to record my moods and use something like olive tin to give myself an interface for it.

I’m learning bash so it would be a good exercise for me, and I’ve been wanting to give olive tin a try.

Not sure if it has every feature you're looking for, but I was able to transition from Daylio to Daily You and be ok with it. Can't track what activities you did with buttons, but can track your mood every day with a journal entry for each day, and an image if you want. There's even a Python script to convert your entries from Daylio into Daily You!

GitHub Repo: https://github.com/Demizo/Daily_You

Repo for aforementioned python script: https://github.com/Demizo/daylio-to-daily-you

IzzyOnDroid Link: https://apt.izzysoft.de/fdroid/index/apk/com.demizo.daily_you/

Tickmate is a one-bit journal to record if something happened or not, each day.

Preset categories or create you own categories. Can create AM and PM mood categories for more granularity.

Exports to a .db file in SQLite format.

I would trust Pixels over Daylio any day, but it's not open source. Solo dev