Can we call one iphone app from another iphone app?

Question

Say, that i am clicking on one iphone app icon,when launched it will create one .app file.So is it possible to call one more iphone app from that app.Or can we do something in that .app file such that it will call another app.

Answer 1

Yes: you need use URL Schemes:

Essentially, one app registers the fact that it handles a particular URL prefix, and then to launch that app, you have to navigate to that URL.

You can pass parameters through this URL too