YouTube recommends the following applications to animate your own story or to create a video slideshow.

• GoAnimate is a fun app that lets you make animated videos, for free, in just 10 minutes, without having to draw. You can even create your own cast of characters.
• Xtranormal lets you to turn anything you type into a fully-animated CG movie. Set up your scene, type in your script, and animate it instantly.
• Stupeflix Video Maker lets you tell a story with your digital content. Mix pictures, videos, maps, text, music and watch Stupeflix produce a stunning video in a few seconds.
• One True Media by SpotMixer is a simply powerful video creation tool. Robust, fast and easy video editing. Combine and clip video and photos.