Generally speaking, there are so many softwares for volunteering. First of all, it is used as reference data (that is, putting the data in the book on the internet), and everyone still takes reference as the main thing! Relatively large platform, perfect volunteer, knowing your career, excellent volunteer. The following basic data are for your reference: 1. The most important thing is data. In terms of data volume, there are relatively perfect knowledge, practice and preference, because these two have been doing it for a long time. Of course, the price is also very important. Compare the prices: 588 yuan for perfect volunteers, 398 yuan for excellent volunteers, and 388 yuan for knowing your occupation.