Actually, airline corporations understand that putting mission critical aviation charts and manuals on Apple iPads were really much cheaper than hardcopy, and a helluva lot more reliable than residing on Microsoft Windows devices...
Apple’s iPad now in use in all American Airlines cockpits
www.appleinsider.com/ articles/ 13/ 06/ 24/ appl... Proxy Highlight
Jun 24, 2013 ... The completion of American Airlines’ iPad rollout has allowed the company to discontinue paper revisions to its terminal charts.
United puts iPads in cockpits for ‘paperless flight deck’ | Macworld
www.macworld.com/article/1161884/ipads_in_cockpit.html Proxy Highlight
The fact that an airline cockpit has required so much paper might be surprising ... And the iPad charts
Well, let's admit that that did result in grounding an entire fleet of one airline when Jessup accidentally uploaded an updated landing map for one Airport that was really fouled up and wound up with TWO maps for the same airport on the iPad and caused their app to endlessly reboot. . . forcing pilots who were planning to fly to Washington D. C. to revert to paper charts until they figured out what they had done wrong!
I believe there were about 78-80 flights that were grounded on one day because of that itty-bitty oops.
To foul up is human, to REALLY foul up requires a human using a computer!