Googlears
There is a thing outside my window that makes this sound "eeep" "eeep"
It sounds like a birdcall, but it's VERY high and always one short note.  It doesn't call from a branch like most birds, it flies around going "eeep" "eeep"
I think it's a bat.

I want to know what it is.

Shouldn't there be an app for that?

What it should do... 

Take it outside, attach the ears, collect a sound and press identify. It'll find what birdcall it is (or batcall) and point to where it came from (in 3d) so you can look in that direction and see the bird (or bat). 

If the Human Brain can do it, surely an Iphone has the computing power to do it. 

A Perfect Gift for the Birders in your family. That'll sell a couple dozen. So ... other applications: 

If the ears were super sensitive, they could hear heartbeats or breathing patterns and tell from the speed what animal it is and where it is. Imagine if you're camping and you hear a noise outside. Turn on your googlears and it'll tell you it's a coyote, not a bear, it's 15 feet away and it's heading away from you. 

Or Imagine you're home alone, you hear a noise from downstairs. The googlears will tell you, from the heartbeat, breathing, and footfalls, what room the intruder is in, what they're hopped up on (alcohol, Heroin, Pot, Speed, Ambien, Ritalin?), and what type of shoe they're wearing. And what size, thus estimating their height. Metalic sounds that might indicate a gun, a knife, or prosthetic limb will be noted. Clever programming could count the change in their pocket from one jingle. 

Add voice recognition and you can spy on your wife's phone conversations from the other room. Hear what the other person has to say, and then use VR to find out their name, address, occupation, credit score, recent travel and... well the sky's the limit. Isn't the right NSA? 

Googlears: Because Spying