Free iPad app: https://itunes.apple.com/us/app/scratchjr/id895485086?mt=8&uo=4&at=10l6SU
Free Android Tablet app: https://play.google.com/store/apps/details?id=org.scratchjr.android
Free Mac program: http://scratch.mit.edu/download
Free Windows program: http://scratch.mit.edu/download
Paid iPad app: https://itunes.apple.com/us/app/move-turtle.-programming-for/id509013878?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/move-turtle.-programming-for/id509013878?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/hopscotch-programming-designed/id617098629?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/hopscotch-programming-designed/id617098629?mt=8&uo=4&at=10l6SU
Website: http://www.tynker.com/
Free iPad app: https://itunes.apple.com/us/app/tynker-learn-programming-visual/id805869467?mt=8&uo=4&at=10l6SU
Website: https://www.codeavengers.com/
Website: http://learn.code.org/users/sign_up
Website: http://www.kodable.com/classrooms
Free iPad app: https://itunes.apple.com/us/app/kodable/id577673067?mt=8&uo=4&at=10l6SU
Free Android Tablet app: https://play.google.com/store/apps/details?id=com.surfscore.kodable.main.android
Paid iPhone app: https://itunes.apple.com/us/app/lightbot-programming-puzzles/id657638474?mt=8&uo=6&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/lightbot-programming-puzzles/id657638474?mt=8&uo=6&at=10l6SU
Paid Android Phone app: https://play.google.com/store/apps/details?id=com.lightbot.lightbot
Paid Mac program: https://itunes.apple.com/us/app/lightbot-programming-puzzles/id924624572?mt=12&uo=6&at=10l6SU
Website: http://www.crunchzilla.com/code-monster