Are there any costs incurred when commercializing SmartThings products after development?

Hello, we want to develop and sell switch products using Smartthings. I would like to know how much it costs from product development to sale to users.

I already know the cost required for certification after developing Smartthings products because it is displayed on the site.

What I want to know is what kind of cost must be paid to SmartThings when developing and selling SmartThings products after certification, or whether the product can be sold to general users without paying the cost.

Please respond from someone who knows or has experienced this.

  1. Is there a cost when registering a product to SmartThings after developing a SmartThings product? How much is the cost if any?

  2. After developing the SmartThings product, do I have to pay the server usage fee when using the SmartThings service? How much is the cost if any?

  3. Do I have to pay a certain fee to SmartThings for each SmartThings product sale? How much is the cost if any?

Thanks in advance to anyone who replies.

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