What are some alternatives?
When comparing iStopMotion and Panolapse, you can also consider the following products
LRTimelapse - LRTimelapse 5 - the best solution for time lapse editing, keyframing, grading and rendering. Supports Windows, Mac, JPG and RAW from any Camera.
MakeAVI - This is a quick and dirty app that I wrote because I wanted to do some work with creating...
Time-Lapse Tool - Time-Lapse Tool allows to make a time-lapse video in just few clicks.
FrameByFrame - Stop motion for mac.
Zeitraffer - Zeitraffer is a simple tool for creating a time-lapse movie from multiple images.
Sequence - Sequence is the ultimate tool for time lapse photographers.