They could then create workouts by creating a list of exercises and rest periods and play their routing with the timer you created.
Does this exist? I want one.
Once again a wonderful example of something incredibly simple but incredibly useful. This would be particularly beneficial for Crossfit style workouts that are closely linked to a timer and where there is a different set of exercises every single day.
Brilliant!
I made an app called RipDeck based on the deck of cards workout that is great for providing variety to your routine.
We have a weekly featured deck or you can create custom decks. Great for bodyweight exercises. Give it a try. https://itunes.apple.com/us/app/ripdeck/id409921624?mt=8
The featured decks are available on the site if you want some workout ideas for use with a regular deck of cards. http://ripdeckapp.com
It seems to be a mutated misunderstanding of "accommodation", which is almost entirely a nervous system phenomenon having almost little to do with adaptations in muscle tissue.
The best form of "changing it up" for hypertrophy is to modulate standard acute training variables. Merely randomly changing exercises is ... not efficient.
Would also just let you set the time interval for cues and have ability keep them repeating indefinitely until you close the app. eg I have 3-4 stretches I want to do after working out and sort of count in my head to 30 seconds for each one.