Simple Poll - The easiest way to create polls in Slack
Unity Ads - Unity Ads allows to supplement the existing revenue strategy by allowing to monetize thr entire player base.
GitHub Polls - Polls for GitHub issues and readme
MoPub - MoPub is a mobile monetization platform that helps publishers drive more revenue from advertising and mobile transactions.
minipoll - Create simple shareable polls in seconds
Appodeal - Appodeal is a supply-side platform for mobile apps, that serves and protects publishers rather than advertisers.