I’ve mentioned a few tools for creating particle effects that work with different iOS game engines.
Here’s something different – a tool from Marin Todorov of Touch Code magazine that uses Core Animation’s CAEmitterCell to create particle effects along with a class you can drop right into your apps.
Here’s a video that is part of a tutorial on using UIEffectDesigner in action:
You can see how Marin has used the native particle systems to an enhance an app in this video showing the Beautiful weather app in action:
A very nice tool that you can use to add some interesting enhancements into your apps.