Could you please offer a NPS tool? And why that tool?

There are many NPS tools to choose from, so which one you choose depends on your specific needs and preferences. For example, if you need an easy-to-use tool, consider using SurveyMonkey or Google Forms. If you need a tool with more functions, you can consider using Delighted or Promoter.io. I chose Google forms, asked customers several questions like "Will you recommend this company/this product to your friends?" to measure, and classified customers who answered "Yes". However, there are also some multiple choice problems that are not particularly smooth to use. Each of these products has its own advantages.