I've got no skin in this game; these companies are only on this list because I have personally had good experiences with their products, prices, shipping, and support. Many of these companies offer free tutorials on how to use their stuff. For more sites specifically devoted to training, go to the MOOCs page.
Non-Maker Digital Tools That Are Just Cool (and free)
app.seesaw.me
https://www.techsmith.com/jing.html
Favorite Phone Apps (search the Apple or Android store by name)
Productivity: CamCard, Keep, Remind
VR: Google Cardboard, Jaunt, NYTVR, DiscoveryVR, (Google) Expeditions, (Google) Streetview
AR: Blippar, Layar, Locly, Aurasma
Art/Design: Stop-Motion,
EdApps: NGSS, Molecules, iTunesU
General Tech Apps: QR Scanner, Post-It Plus, Plickers