Keynote is a featured app because it can be used to create polished professional presentations. Twelve beautiful themes can provide an excellent starting point for creating a slideshow which you can modify to meet your personal needs. Endless choices of fonts, colors, charts, symbols, shapes and tables provide you with a wealth of options. Animation effects allow for multiple objects to appear in timed intervals on the same slide. Presentations can synced to iCloud or exported to iTunes. Keynote is a paid app that works on an iPhone, iPod touch, and iPad.