CameraReporter PRO for iPhone helps you Demonstrate Truth With Actual Time

Extra, extra, read about it all!
There are a lot of camera applications out there, but how many of them provide “an ultimate evidence of what you have seen”? I don’t think of myself as a high-horse riding English language elitist, but the description for CameraReporter PRO is just too good not to share. This camera app, which timestamps all of your pictures as you take them, gives you all the tools to “show them you was really there”, “show them how high you was”, and best of all…”shock your friends that you something really did”. I often have a lot of trouble shocking my friends and proving that I something really did (why don’t they me believe?!), so I think this app could be a real life-saver for me.
In all seriousness now, I don’t really see how you could expect a printed timestamp to be used as any kind of convincing evidence, especially since it would be so much easier for me to forge the photo’s timestamp than the EXIF data. However, if you’d like to try your hand at being a CameraReporter PRO, it’s on the App Store for $1.99.

Altitude? The iPhone has an altimeter? I guess you could fake it by doing some crazy net lookup converting GPS to some geodata somewhere. Or can GPS determine altitude on it's own?
I don't believe it has an altimeter. I'm thinking along the same lines as you: gps data converted to estimate height via topography.
I’m not sure it’s worth $1.99 just to get a photo timestamped, especially considering that if the purpose of the app is to be able to “prove” you were at some kind of event, wouldn’t the fact that you have a picture taken on an iPhone to begin with be enough to (generally) show people that you were, in fact, there? Seems like a pointless app to me. The whole latitude/longitude/altitude feature seems especially useless. Maybe I’m just thinking to much into it.
I got a laugh out of the description though, so I suppose that counts for something.