There are some great photo features on the Iphones – anything from a 5 onwards has slow-mo, panorama and even a time-lapse feature built in. I came across this great app that you can combine with your IOS phone called Hyperlapse. This app films the video in normal time but then converts it to your desired frame rate and makes it looks like a time lapse. In most cases I think the clips look great sped up!
The app is an off shoot of instagram but there is the ability to upload the video footage into imovie and link them all together, like I have below, and throw some music in for fun. It’s a great app to combine with some other features like still shots.