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FB ads: Learning and optimization – Insights, September 2021

I’ve dug really, really hard in Facebook ad data in the last 10 days or so. I have founds some really interesting things, most of which are bad.

The most general and broadly affecting is that Android is getting most of the total spend. In this post I list the details how and where this is happening.

Note to self

Note to self – Cheap, quality developers