Photo + Music = Video App is the best application for your phone that will let you create video slideshows with music and pictures in an easy and fun way. It's a free app that's available on Android devices and the iOS platform.

It supports various image editing tools such as trim, cut, copy, paste, and rotate. You can also add text and draw different shapes. You can even combine multiple images into one and share them with your friends. It's a very powerful app that will let you create slideshows in no time.

It has a built-in photo editor that will let you add frames and apply different effects to your images.