Hi! There are some Apps that Amazon does NOT have that Google Play or other APK makers have, like "Citibike" "Gett" and others. My question is do ALL APK apps 100% work on 10.3.1 operating system? On the previous 10.2 operating system, sideloaded BAR-to-APK apps would only SOMETIMES work. Do ALL APK apps work on 10.3 or ONLY Amazon Apk apps??