It does ONE thing really well
Zeitraffer is literally an app I was dreaming of while working on a stop motion project several years ago. It converts still pics to movies with variable framerates and variable output sizes, and thats it. Aside from the pre-defined output aspect ratio mentioned previously, theres not a single thing this app needs (and even then, that would be a nice add-on, but the app works fine as is.)
ihnpts about
Zeitraffer