gPad is described as 'Use your Android device as a remote touchpad or keypad to control your Windows or Mac PC via Wifi or USB' and is an app in the Network & Admin category. There are six alternatives to gPad for a variety of platforms, including Android, Mac, Windows, Android Tablet and iPad. The best alternative is Unified Remote, which is free. Other great apps like gPad are Remote Mouse (Freemium), AIO Remote (Free), Mobile Air Mouse (Freemium) and Ultimate Control (Freemium).
Unified Remote is an app that lets you control your entire computer from your mobile device. In short, it turns your device into a WiFi or Bluetooth remote control for all the programs on your computer. It is easily the most feature-filled Mobile-PC remote available.
AIO Remote stands for All In One Remote, With All In One remote, you can control any application ever by creating your own fully customized custom remotes. You can use your Android/Blackberry phone/tablet. Windows, Linux and Mac are supported. Features
Mobile Air Mouse instantly transforms your mobile device into a motion-based mouse, trackpad, and wireless remote for your computer! It uses the built-in accelerometer to translate your hand motions into mouse movements on your screen.