LogTen Pro. iPhone and Mac. I input my flights each night of the trip on the phone and sync with my laptop when I get home. I email my logbook to myself each month for backup.
It's truly the best thing I've ever purchased for this career. I love the smart groups and have a bunch of them programmed for different things. I have a programming background, so setup for me was super easy, but I can see it could be a learning curve to get the program initially configured with what you want, but once you do, it's awesome! If you need an 8710, it spills one out for you. If you need to compile your times for AirlineApps, it has a form that spills that all out too in an instant. It really makes your life easier. You'll thank us later!