What kind of security app is everyone using? Should I fork over the money for the premium Lookout?
Well, what type of security are you looking for? Cerberus has good tracking options where you can use a web interface to remotely activate features like grab texts, record screens, take pictures. Unless you're looking for something like a virus scanner.
Best GPS navigation app? I don't mind paying if it means better quality. I'd want it to include traffic and speed camera info, and ideally lane assistance to help at complex junctions. Both Tom Tom Go and Copilot do that, and Google maps I think?
Here maps has offline as a bonus and seems very fast, but doesn't seem to have traffic info. Likewise sygic which felt good to use but I couldn't see traffic hold ups.
Last I checked Here, the voice output was extremely broken and frustrating. Maps is great with lane navigation except for those offline features (which you have to renew every month and you can't do it automatically in batch). I use Waze in conjunction with Google Maps because Waze will run in the background (not using it to nav, just have it open) and it'll warn me of police traps, potholes, construction, closures, etc.
Google Maps already integrated their route-change suggestions which actually works really well in terms of notifying you. Only problem is I don't like the interface to activate the new route.