WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.
TreeSize - TreeSize tells you where precious disk space has gone to.
Landbot - An intuitive no-code conversational apps builder that combines the benefits of conversational interface with rich UI elements.
SpaceSniffer - SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.
ChatBot - Easy to use chatbot platform for business