This is true, Apple has this stuff locked down, which depending on how you look at it is a good thing for security. Its doesnt allow apps into its "system" when it comes to wifi data.One thing that Android allows is more access into the internals when it comes to WIFI interrogation. I use WIFIMAN to analyze the WIFI in some buildings and the amount of information WIFIMAN can pull is significantly more from an Android phone that an iPhone. The iPhone has some things locked down and WIFIMAN can not access all the data it needs.
Being in the security industry I used a different app (struggling to remember the name) on a Samsung (Android) Tablet for this purpose.
I did A LOT trouble shooting connected wi-fi equipment and positioning routers. Retired now I still use it in my house, though since moving to a new one I advent needed too but think I will take it out for fun. I think it was simply called WiFi Analyzer