Promoter is described as 'Media monitoring and press clipping for game and app developers, done right'. There are four alternatives to Promoter, not only websites but also apps for Windows and Mac. The best alternative is AppMind.co. Other great sites and apps similar to Promoter are Sensor Tower (Paid), Meatti (Paid) and Taps.io (Paid).
Meatti helps mobile app developers increase app downloads, revenue, and user engagement with actionable insights. App developers can get them all done without spending a penny on advertising and changing a single line of code.
Taps.io is a free service that shortens your App Store links and gives you useful statistics on who's clicking on them. See how many users click through to the app store, change destinations, and more.