Keynnote is a iOS app created by Apple. The premise of this app is that you can create presentations on the go using your iOS device. It will cost you around $9.99 but as you will be aware; is quite worth it.
Keynote has a very simplistic design. It has two main screens, a collection list of all the presentations you made or downloaded and the presentation viewer/editor.
The editor is exactly what you would expect in a simple Microsoft Powerpoint application. Just not as heavy. What you can do with this app is actually quite amazing. For starters the presentation editor allows you to import pre-made objects, pictures and movies straight of your device and control how they transition into the slide or configure its orientation/size. The amount of effects you can use will make your slide look professional. Because of this subtle feature you’re not hindered in terms of presentation because of simplicity but can benefit from the simple interface to make quick and easy presentations.
This app also allows you to make decision based events like skipping to another slide. With this you can make interactive presentations.
After the presentation is made you have a set of options to export the presentation.
The app is $9.99 but worth every dollar if you’re the type that is on the go or needs to create presentations on the fly. I recommend this app. A more detailed review can be found here.