A free app for Android, by René DeAnda.

Delightful: Gratitude Journal is a journaling app that helps you discover and record the things you are grateful for. It will remind you to write down your thoughts and actions in a journaling app. It’s easy to use and has a beautiful, clean, and simple UI.

What’s included in Delightful?

It has a simple UI with daily gratitude reminders. You can add as many reminders as you want. It also has daily quotes for motivation and inspiration.

It has multiple themes. You can set the theme as a background or text. It has multiple language support. 

You can add photos, videos, and audio clips to your journal.

You can export your entries and save them in CSV format.