The VNC Viewer app for iPhone/iPad which used to be 10$ before is now free on App Store
Here is the App Store link: https://itunes.apple.com/us/app/vnc-viewer/id352019548
Here is the product link on the Real VNC website: http://www.realvnc.com/products/ios/
You can control a computer from your iPhone, iPad or iPod touch! VNC® Viewer connects your device to a computer anywhere in the world, displays its desktop, and lets you take control. You can run applications, change settings, and access data exactly as you would be permitted to do were you sitting in front of that computer, and using its keyboard and mouse.
1. Download VNC Viewer from the App Store.
2. Obtain and start VNC-compatible Server technology for the computer you want to control, for example VNC 5.
3. If you are connecting over the Internet (for example, via 3G), configure firewalls and routers protecting the computer to allow and forward network communications to it. Start with www.realvnc.com/products/ios/2.1 for more information. If you are connecting over a Wi-Fi-enabled private network such as a LAN or VPN, you should be able to connect straight away.
4. Find out the network address of the computer. If you are connecting over the Internet, this will probably be that of a router. You will also need a port number if the VNC-compatible Server is listening on a port other than the default for VNC, 5900.
5. Start VNC Viewer, identify the computer you want to control, and connect!
* Interact with your computer as though sitting in front of it.
* Support for Bonjour, making it simple to locate and connect to compatible computers.
* Give connections user-friendly names, and see desktop previews.
* Pinch to zoom in to a specific area, or out to see the whole picture.
* Easy navigation, scrolling, dragging, and selection using standard touch, tap, and drag gestures.
* Mouse button mode for precise control over mouse button and scrolling operations.
* Easy text entry using on-screen keyboard with preview.
* Important non-character keyboard keys (function, modifier, and so on) available on a scrolling key bar.
* Automatic performance optimization.
* Support for screen resolutions up to 5120 by 2400 pixels (though the actual resolution is limited only by the memory of your device).
Users connecting to VNC 5 with a Personal or an Enterprise license also enjoy the following significant benefits:
* Connections encrypted using up to 256-bit AES technology.
* Authentication credentials protected by 2048-bit RSA public keys.
* System authentication to connect using computer log on credentials.
* Enhanced performance.
* Support for non-US keyboards.
* Text transfer between applications on computer and device.
VNC 5 is available for a wide range of Mac OS X, Windows, Linux, and UNIX computers. For more information, visit www.realvnc.com/products/vnc.
VNC Viewer can establish standard (insecure) connections to:
* VNC 5.x with a Free license, from RealVNC.
* Mac OS X 10.4 or later with built-in Apple Remote Desktop/Screen Sharing enabled (System Preferences > Sharing). Note this does not apply to PowerPC Macs running 10.4 (Tiger); install VNC-compatible Server technology instead.
* AMX touch panels.
* Third-party VNC-compatible Servers.
VNC Viewer can establish secure (authenticated and encrypted) connections to:
* VNC 5.x with a Personal or an Enterprise license, from RealVNC. 30 day trials are available.
* Legacy VNC Enterprise Edition 4.x, from RealVNC.
* Legacy VNC Personal Edition 4.x, from RealVNC.