I’m recently working on a project that can read/write amiibo information using iPhone. You can download it from the App Store. This article is a simple tutorial for people who are not familiar with amiibo duplication.
AmiiBot
AmiiBot is the #1 choice for Amiibo management on your iPhone. AmiiBot allows you to store and duplicate your amiibos…
Preparation
Skip this section if you understand what kind of NFC tag can be used for amiibo.
First, you need to prepare compatible NFC tags. Amiibo data can only be store in an unlocked NTAG215 NFC tag. Once the amiibo data is successfully written into the You tag, this amiibo card is locked. You can not write different amiibo data.
If you are sure you’re using a compatible tag, you can go to the next step. AmiiBot provides a tool to check if your tags are compatible. You can go to Settings -> NFC FAQ to check your tags. If it says ‘Blank NFC Tag,’ it means you can use this tag.