Difference: Cangnan Alliance Card mainly sells cards. At the beginning, a card was issued in 200 yuan/year, but now it seems to be 100 yuan/year.
Cangnan card is mainly to build the popularity of the website, and the card is free.
The teacher card is a preferential card that only teachers can handle. It seems to be 10 yuan for one year.
The most franchisee is the teacher card, but only teachers can handle it, and it costs money. So the popularity is not very great, after all, the number of teachers is limited.
The number of Cangnan Alliance Card and Cangnan One Card is similar, and at present, they are all more than 100.
Discount: all the same. For merchants, no matter which one they join, they all want to attract more consumers, so the discount is the same.
Recommendation: Just use Cangnan Card. It's free and everyone can handle it. First, unlike the teacher's license, only teachers can do it. Second, unlike the alliance card, it needs 100 yuan. Third, websites often hold activities and have prizes.