Switch Climber is a subscription based, online curriculum for teaching switch skills to learners with special needs.
Developed by a SLP/AT Specialist, Switch Climber has five levels of activities working through cause and effect to advanced scanning methods. Activities are designed to be age appropriate across all levels and accessible to those with multiple disabilities such as visual impairment. Switch Climber also has a nice blog you can check out to learn more about switches and related topics.
Switch Climber costs $14.95 a month and you can "try-before-you-buy" with a free two week subscription. These subscriptions are per learner. Teachers and schools may be interested in group subscriptions.
Personally I am hoping that Switch Climber ads an app with compatibility to the iOS switches on the market so the programs can also be used on iPads and maybe even Android devices.
Below you can find one of the many Switch CLimber videos on Youtube: