RTX also features pixel tracking (with a server-to-server postback option as well) that you can use to manage your campaigns right within their platform.
If you are limited on budget and want to test push notification traffic as well as other ad formats like native ads, RTX Platform is a great option because you can use the same budget to run campaigns across multiple formats (Push, Native, and Pops).
RTX Platform Promo Code Get Promo Code
Use the link above and get a $100 credit when you spend $75 in the first week on RTX Platform (new advertisers only)
Frustrating to work with. Ads were rejected (after sitting for 2 days with a pending status) that I know they allow through using spy tools (which means they are running internally or they only allow large advertisers to run). Their support never answered some of my questions for help.