USS Bowfin Submarine Museum in Pearl Harbor has one of these.

GitHub does it. Try to request desktop version.

How to actually try it? I've created free organization under my GitHub profile, but Classroom still says me "You’re not managing any organizations yet."

Classroom for GitHub needs access to your organization. Grant access in Settings | Applications | Authorized applications | Organization access

I got this error for line "targetsd = dummyvar(targets);": Undefined function 'dummyvar' for input arguments of type 'double'.

Android please!

Android only recently released APIs for sound that are accurate enough for these kinds of applications. As the % of devices running Android 5.0 starts increasing, we'll see sound mixing (and similar) apps there too.

While Android's sound APIs before Lollipop did have a very high latency, you could hack around it by doing your audio processing in native code and feeding the APIs PCM. It just sucked.

That said, definitely excited for the new sound APIs. It's been far too long.

Thanks for the tip, we'll check that out! We used web audio for audio processing for this app. There were a lot of challenges on the way!

As an indie kid-friendly app developer with iOS and Android apps - don't do Android. You'd be much better off financially doing another iOS app.

Are retina-like HiDPI displays supported here?

What is superior in windows explorer? Is that sarcasm?

Sarcasm, actually no, I am sure Windows File Explorer few advocates in the wild.

Personally, I really prefer the Windows File Explorer over Finder or Gnome/KDE with its file system integration with apps (right-click open with), easier more powerful search capability, very easy cut/paste from right+click as well which in OSX is only "copy" -- so to "move" a file requires a copy, go find the new location, paste, then go delete old location.

Not really debate-worthy just personal opinion. Do you know a better way to cut/paste files in Finder? I'm eager as I'm on a mac (and otherwise love it)

Cool, I like that. Seems better than janus or spf13. Leave you some issues though.

Looks like stupid paid prose.io clone.