Interesting company. It was created in 2018 [1], and the CEO is Michael Heyward, who was a co-founder of Whisper. Some interesting shuffling happened with Whisper [2] and it's now owned by MediaLab. Since then they have acquired a number of other properties, the general idea seems to buy declining brands for cheap and extract as much value as possible on mobile. [3] There is no public information on their funding.
1. https://businesssearch.sos.ca.gov/CBS/SearchResults?SearchTy...
2. https://www.latimes.com/business/technology/la-fi-tn-whisper...
3. https://www.assemblyexchange.com/about-us - their job ads feature this ad network prominently.