Octopus collector can be used for free after upgrading. Octopus collector is a promotion market. As long as users upgrade Octopus collector to the latest free version, they can always use it for free. Octopus collector is an Internet data collector for the whole network. It simulates people's browsing behavior, and generates an automatic collection process through simple page clicks, thus converting web page data into structured data and storing it in EXCEL or database. And provide a big data cloud collection solution based on cloud computing to realize data collection.