I have found these apps really useful in Primary classrooms. A few of the apps added here aren’t just the iPad version as they weren’t listed in the iPad collection. Nearpod is now just available in a combined teacher student app.
Free Android Phone app: https://play.google.com/store/apps/details?id=com.socrative.teacher
Free iPad app: https://itunes.apple.com/us/app/teacher-clicker-socrative/id477620120?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/teacher-clicker-socrative/id477620120?mt=8&uo=4&at=10l6SU
Website: http://www.socrative.com/
Edmodo app: http://www.edmodo.com/publisher/socrative
Google Chrome app: https://chrome.google.com/webstore/detail/socrative-teacher/ofajgnplnindhnhnconjocimijjifaln?hl=en
Free Android Phone app: https://play.google.com/store/apps/details?id=com.dropbox.android
Google Chrome app: https://chrome.google.com/webstore/detail/ioekoebejdcmnlefjiknokhhafglcjdl
Free iPad app: http://itunes.apple.com/us/app/dropbox/id327630330?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/dropbox/id327630330?mt=8&uo=4&at=10l6SU
Free Mac program: https://www.dropbox.com/downloading?os=mac
Free Windows program: https://www.dropbox.com/downloading?os=win
Website: https://db.tt/dUahryRn
Free Android Phone app: https://play.google.com/store/apps/details?id=com.cloudon.client
Free iPad app: http://itunes.apple.com/app/cloudon/id474025452?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.evernote
Google Chrome app: https://chrome.google.com/webstore/detail/pioclpoplcdbaefihamjohnefbikjilc
Mozilla Firefox extension: https://addons.mozilla.org/en-US/firefox/addon/evernote-web-clipper/
Free iPad app: http://itunes.apple.com/us/app/evernote/id281796108?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/evernote/id281796108?mt=8&uo=4&at=10l6SU
Free Mac program: http://itunes.apple.com/us/app/evernote/id406056744?mt=12&uo=4&at=10l6SU
Apple Safari extension: http://evernote.com/download/get.php?file=SafariExtension
Free Windows program: http://evernote.com/download/get.php?file=Win
Website: http://www.evernote.com/
Free Android Phone app: https://play.google.com/store/apps/details?id=com.fusionprojects.edmodo
Free iPad app: http://itunes.apple.com/us/app/edmodo/id378352300?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/edmodo/id378352300?mt=8&uo=4&at=10l6SU
Website: http://www.edmodo.com/
Google Chrome app: https://chrome.google.com/webstore/detail/edmodo/fpcdidgjjebefhmlhjlgnkahlimgaemc
Paid iPad app: http://itunes.apple.com/us/app/garageband/id408709785?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/garageband/id408709785?mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/us/app/garageband/id408709785?mt=8&uo=4&at=10l6SU
Paid Mac program: http://itunes.apple.com/us/app/garageband/id408980954?mt=12&uo=4&at=10l6SU
Paid Mac program: https://itunes.apple.com/us/app/imovie/id408981434?mt=12&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/imovie/id377298193?mt=8&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/imovie/id377298193?mt=8&at=10l6SU
Free Android Phone app: https://market.android.com/details?id=com.evernote.skitch
Free iPad app: http://itunes.apple.com/app/skitch-for-ipad/id490505997?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/app/skitch-for-ipad/id490505997?mt=8&uo=4&at=10l6SU
Free Mac program: http://itunes.apple.com/app/skitch/id425955336?mt=12&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/pages/id361309726?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/pages/id361309726?mt=8&uo=4&at=10l6SU
Paid Mac program: http://itunes.apple.com/us/app/pages/id409201541?mt=12&uo=4&at=10l6SU
Paid Mac program: http://itunes.apple.com/us/app/numbers/id409203825?mt=12&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/numbers/id361304891?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/numbers/id361304891?mt=8&uo=4&at=10l6SU
Paid Mac program: https://itunes.apple.com/us/app/keynote/id409183694?mt=12&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/keynote/id361285480?mt=8&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/keynote/id361285480?mt=8&at=10l6SU
Free iPad app: http://itunes.apple.com/us/app/itunes-u/id490217893?ls=1&mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/itunes-u/id490217893?ls=1&mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/book-creator-for-ipad-create/id442378070?mt=8&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/book-creator-free-make-books/id661166101?mt=8&at=10l6SU
Google Chrome app: https://app.bookcreator.com/sign-in
Website: https://bookcreator.com/
Free Windows program: https://app.bookcreator.com/sign-in
Free Mac program: https://app.bookcreator.com/sign-in
Free iPad app: http://itunes.apple.com/us/app/screenchomp/id442415881?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/id1024652126?mt=8&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/id1024652126?mt=8&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.nuance.dragonanywhere
Free Android Tablet app: https://play.google.com/store/apps/details?id=com.nuance.dragonanywhere
Free iPad app: http://itunes.apple.com/us/app/toontastic/id404693282?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/toontastic-all-access/id563403725?mt=8&uo=4&at=10l6SU
Website: http://www.nearpod.com/web
Free iPad app: http://itunes.apple.com/us/app/nearpod/id523540409?ls=1&mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/nearpod/id523540409?ls=1&mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.panareadigital.Nearpod
Free iPad app: http://itunes.apple.com/us/app/visualize-free/id456857776?mt=8&uo=4&at=10l6SU
Paid iPad app: http://itunes.apple.com/us/app/visualize/id444076754?mt=8&uo=4&at=10l6SU
Paid iPad app: http://itunes.apple.com/us/app/my-story-book-maker-for-kids/id449232368?mt=8&uo=4&at=10l6SU
Free iPad app: http://itunes.apple.com/us/app/puppet-pals-hd/id342076546?mt=8&uo=4&at=10l6SU
Paid iPad app: http://itunes.apple.com/us/app/popplet/id374151636?mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/us/app/popplet/id374151636?mt=8&uo=4&at=10l6SU
Website: http://popplet.com/
Paid iPad app: http://itunes.apple.com/us/app/comicbook!/id436114747?mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/us/app/comicbook!/id436114747?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.threedtopo.comicbook.android
Paid iPad app: https://itunes.apple.com/us/app/creative-book-builder/id451041428?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/creative-book-builder/id451041428?mt=8&uo=4&at=10l6SU
Website: http://www.showbie.com/
Free iPad app: https://itunes.apple.com/us/app/showbie-for-ipad/id548898085?ls=1&mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/showbie-for-ipad/id548898085?ls=1&mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/notability-take-notes-annotate/id360593530?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/id431493086?mt=8&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/id431493086?mt=8&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.explaineverything.explaineverything
Free Android Tablet app: https://play.google.com/store/apps/details?id=com.explaineverything.explaineverything
Google Chrome app: https://chrome.google.com/webstore/detail/explain-everything/abgfnbfplmdnhfnonljpllnfcobfebag
Paid iPad app: https://itunes.apple.com/us/app/scribble-press-creative-book/id999929385?mt=8&at=10l6SU
Paid Android Tablet app: https://play.google.com/store/apps/details?id=com.fingerprintplay.scribble2paid
Paid iPad app: https://itunes.apple.com/us/app/id443802549?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/id443802549?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.dama.papercamera
Free Android Tablet app: https://play.google.com/store/apps/details?id=com.dama.papercamera
Paid iPad app: https://itunes.apple.com/app/mathboard/id373909837?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/app/mathboard/id373909837?mt=8&uo=4&at=10l6SU
Paid Android Phone app: https://play.google.com/store/apps/details?id=com.palasoftware.mathboard
Paid Mac program: https://itunes.apple.com/us/app/mathboard/id413393758?mt=12&uo=4&at=10l6SU