Both owners and submissives get a HUD for use in Second Life and both have an easy-to-hide viewport that loads the same interface you can use on all your devices. The Owner HUD doesn't have to be worn at all but is useful for identifying places and furniture that you can use with RLV's force teleport and sit features. The Slave HUD needs to be worn by every submissive and takes up minimal space when the viewport isn't open. It features a safeword button that is always a single click away.
ToKon2 is a web based app so it can be run on all Apple devices, even though it's adult in nature. Just load up the web app in Safari and then it can be installed instantly and behaves like every other app. It even looks like all your other apps, running full screen and adjusting when you rotate your device.
Our app runs in any browser that supports HTML5, so your Android phone or tablet should run ToKon2 just fine, no matter what manufacturer you own or what version of Android you have. Current versions of Android let you install apps to the home screen and launch them full screen as well.
We can't promise ToKon2 will work absolutely everywhere, but if your device has an Internet connection and can run a modern browser that supports HTML5, then ToKon2 will probably work there. That's the beauty of open standards and the ubiquity of the web. If anyone gets it to run on their refrigerator, please send us a photo.