I just want to share that this is a most remarkable Free app. The templates are a great start- then customize to your heart's content! I liked the black one that has customizable (by the viewer!) slide change intervals. The author's website has helpful documentation. The first couple times I threw out my show because I didn't fully understand the process. The third try worked like mad! Now I can't stop myself from making slideshows for all my friends. Thanks much... 5 stars for sure