Adonit's Mark is a standard mesh-tipped stylus with a few features to set it apart from competitors, including an anti-roll design and an aluminum body in either silver or black to match Apple's Silver and Space Gray iOS devices.
The Adonit Switch is a convertible stylus that bundles a ballpoint pen with one of Adonit's signature clear plastic precision stylus tips. One end contains a standard 0.8mm ballpoint pen tip, while the other works with all of Apple's iOS devices. Like the Mark, it comes in silver and black.
Both the Switch and the Mark are available from the Adonit website. The Mark is priced at $12.99 and the Switch is priced at $39.99.