Latest questions about "pdanet for android"

I read somewhere that PdaNet does not work for Android 7 and higher. Is this true? I had PdaNet on an older LG phone and it worked ok.

If I purchase the program and install it on my phone now, will it work on a new phone which I am planning to purchase in approximately 1-2 months?

I paid 20 dollars for this program, but no one sent me the registration number. I can't use the software. Can you help me?