I've been asked to consult for a big Apps Company who's considering making an App designed specifically for Tree Climbers and Arborists. So I ask you, the experts, what would you find useful to have in an App? Clients list, Uploading photos and creating spreadsheets of your jobs, Knots, calendar, techniques, pruning tips...? They actually don't know yet if there is a big enough market for an App. What do you think? Would you use an App to organize your work? What features would you find indispensable? I appreciate a lot any feedback!