Airplaying or mirroring of IOS devices

Hi everyone, I know this is not the correct way for requesting apps, but in this case I'm not requesting a particular app, but a functionality. However if anybody knows of such an app that can be used, then please let me know. The idea is to have the possibility to mirror my ipad or iphone onto the computer without the need of installing an app such as x-mirrage, or lonelyscreen.

Thanks again,

Lluco.