Actually, their Developer Program Policies prohibit "a webview of a website not owned or administered by you": https://play.google.com/about/developer-content-p

Actually, their Developer Program Policies prohibit "a webview of a website not owned or administered by you": https://play.google.com/about/developer-content-policy.html https://play.google.com/about/developer-content-policy.html But this is only a rule, that does not mean anybody enforces these guidelines ...