Icon Diary is a free lifestyle application developed by GalleryApp for Android devices. It is a cute diary app that allows users to select a background image and add icons for each diary entry. Users can save multiple diaries in a day, and saved diaries will be displayed under the calendar as an image for easy management.

The app also has a feature for managing daily plans by adding two marks on each date. The initial window is the calendar, where users can access the "Add" button to create a new diary. From there, users can move to the Canvas Window, where they can customize their diary by adding icons, changing the background image, and editing icons using the shrinking, enlarging, rotate left, and rotate right buttons. Users can also write text, send the memo by email, save the memo as the mobile background, and move icons up and down by using the respective buttons. After creating a diary, users can tag it and save it by pressing the "Back" button of their mobile device. The app automatically saves the diary, and a star mark will be displayed on the date when there is a saved diary.

Icon Diary is a great app for those who love customization and cute designs. The paid version of the app does not display ads.