What are the currently available mobile phone verification code receiving tools?

Still available today, the relatively standardized and stable receiving tools are Niu code platform, code receiving platform and polar code platform. When selecting the available verification code receiving tools, the landlord should pay attention to the following points:

1. is fully functional, and the core SMS sending and receiving must be available, which is the basis of all functions of the tool;

2. The price is moderate, and the current price is basically between 0. 1-0.5 yuan. It is suggested that the landlord choose the one that can be recharged freely, and it is not recommended to use the one with recharge threshold;

3. After-sales service, good after-sales service can reassure users and solve difficult problems effectively;