Flipagram is a free Android and iOS app for telling stories through pictures. Like its name implies, Flipagram lets you import pictures from your Instagram account to create a video flipbook of images set to music. Instagram is not the only source from which you can pull images. You can also pull images directly from your device's camera roll or from your Facebook account.
After choosing images for your Flipagram you can rearrange them into the order that you think will best tell your story. After arranging the image sequence choose some music to complete your project.
Applications for Education
I look at Flipagram the same way that I look at Animoto and similar simple video creation tools. They're nice tools that students can use to quickly create visual autobiographies, to create a summary about a school field trip, or to highlight some of their favorite parts of the school year. You might also have students use a tool like Flipagram to create digital postcards and digital greeting cards.