This is a simple and easy to use work diary software. With the free portable version of Performance Diary, you have a close friend who is willing to share your life with you. Efficiency Diary Free Portable Edition is an essential information management tool for people from all walks of life. Take some time every day to open the performance diary, sort out the mood today, recall the old feelings, look forward to the sweet tomorrow, and a happy life cannot be separated from the performance diary!