We do have to cite media coverage about AntennaPod, though:
The topic of this article may not meet Wikipedia’s notability guidelines for products and services. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention.
Not sure what media coverage is considered promotional and what not. I mean, most independent articles about AntennaPod are more or less promoting the app.