iJuggle is a free siteswap generator & animator for iPhone, iPad.
The generator allows you to choose between a variety of options for generating siteswaps such as async/sync/passing notation, multiplexing, ground/excited states, and composites. It will also allow you to only list siteswaps that contain or exclude certain throws.
Tap on the Generate button at the top right corner to generate patterns according to the parameters you have specified. Then tap on a pattern to animate the siteswap. You will have the speed control to slow down or speed up the siteswap animation. The animator enables you animate synchronous, asynchronous, and multiplexing patterns.
It also allows you to specify juggling styles such as reverse, shower, Mills Mess, center, windmill, random, which you can mix with any siteswap.
Get this free siteswap generator & animator for iPhone, iPad on Apple App Store here. Note that although this app has not been updated for 8 years, it still works on my iPhone which is running on iOS 15.3.