We have an assortment of designs that allow you to put captions on each photo, so you can have different text for each slide. These designs are under the "Slideshows" category in the Ripl Pro Design Catalog.
We add new designs weekly, so you will continue to see new types of these designs on a regular basis. My recommendation is that you watch the preview videos on new designs. If the text copy changes from photo to photo, it is a slideshow design that supports different captions on each graphic.
Watch this tutorial on how to create a basic slideshow design!