1, Sun Research. A private online learning APP, personal library management software. When there are many books at home, I am very confused about how many books there are. By scanning the code, I can enter books and share them with friends who love books.

2. Interactive map browser. Aowei interactive map browser integrates many well-known maps, has powerful design functions and geographic information display technology, and can meet the needs of geographic information planning in all walks of life. It is not only a good helper in your work, but also your best companion to explore the unknown world.

3. Fruit knowledge. At present, 73 kinds of fruits, 77 kinds of vegetables and 0/5 kinds of nuts have been collected. The introduction page of each fruit and vegetable not only contains basic information such as mature season, therapeutic efficacy, eating taboos, applied ingredients, etc.

4. Draw. Painting Bar is a community app specially designed for friends who like graffiti painting. Many friends here share their graffiti works, and whether they are experts or not, they can practice here.