I’ve subscribed to WhatRunsWhere off and on for years anytime I need to see what a competitor is running. It’s much less expensive than other similar offerings, so you can use it even on fairly small campaigns or for pitching. Overall, very good value for the price. Review collected by and hosted on G2.com.

There are some tools on the market that can find ads running on hard to track sites. WhatRunsWhere does a pretty good job, but sometimes the more expensive tools uncover ads that WhatRunsWhere missed. Still, those tools often cost at least 10x more than WhatRunsWhere, so that extra functionality comes at a steep cost. Review collected by and hosted on G2.com.