Development and cost of Ad spy Tool

[monomono]

Forum Hello, everyone
I am an Asian web marketer.

I learned that there are many Ad Spy TOOLs.
However, there are few Ad Spy TOOLs that support Asia.
So I wanted to develop my own Adspy tool.
Ad network SpyTOOL is simple. I thought it was good to scrape a lot of residential IP.

However, Instagram and Facebook serve ads based on targeting.
How much does it cost to develop Ad Spy TOOL with a focus on FaceBook and Instagram?
Use Google Translate. Sorry for bad