Hello there :) My name is Stefan. I'm a professional recording engineer, composer and sound designer at Illusia Productions. We have over 15 years of experience in the audio business and we can deliver high quality music, sound effects and voice overs and pretty much any audio work.
We have co workers with android devices and I myself use iPhone 5s and iPad as well. Could you explain your test a little further? As far as I know, human hearing goes in best case up to 20 kHz, which I'm sure is the limit of these mobile microphones. However, I'm sure you have a reason to ask for this specific frequencies, I could genereate pure test tones on these frequencies and record them with both mobile devices. But I'd still like to get a little more info on your interesting test :)
If you have any questions, feel free to contact me. :)
Best regards,
Stefan