Which ad spy tools work great for you

I am looking for ad spy tools help me in paid ads
Which one works for you in Facebook and google?

Foe Google, ispionage works great for me. It can help you find your competitors landing pages, keywords they are using and ad copies.
It can also give fair idea what niche is allowed and working with Google ads. Also you will be able to find CPA campaigns which other people are running so you can replicate or model them.

I used Adbeat for awhile and whatrunswhere. Adbeat is expensive but really good. Adespresso is good for FB ads as well. You could also just visit facebook https://www.facebook.com/ads/library to see FB ads for free

using adespresso for FB too