Adobe Spark is a free online app that allows the mixture of photos and text to create a video presentation. It can then be shared with others by using a shareable link. There is also a basic video editing version called Adobe Spark Video that allows you to add video clips to these presentations.
The app can be found at spark.adobe.com. All you need to do, is to set up an free Adobe account. Check it out!
There are many YouTube video tutorials if you just google for some.
If you are LDS, you have free access to Lynda.com for a huge library of video tutorials. Lynda.com has a tutorial on Adobe Spark. If you would like to access this website, click HERE for instructions.