Heyu is a mood diary notepad, writing diary software, record interesting things happening around you anytime, anywhere, and can be used as memos, diaries, notepads, notes. Keep a diary of your mood.

Simple and fresh, simple but easy to use, everything we do is just to better record life, release stress, and make memories.

—Multiple background images
Heyu provides a variety of personalized background pictures, which can be freely changed for free and switch backgrounds according to your mood.
—Simple diary notes
Release stress or plan for the future and record your every day. A simple timeline that looks back at the past and looks back on your daily journeyGraphic diary, today's outfit, real-time weather, mood trajectory, record anytime, anywhere.
—Drifting bottle
Heyu supports the drifting bottle function. You can put your mood diary in a drifting bottle and drop it out so that someone else might pick up your drifting bottle and share your mood diary.