Stow 2
I reviewed Stow back in August. It has been insanely useful ever since I started using it. It looked great at the time but thanks to iOS 7, it looks dated now. Today Stow 2 launches as a separate app completely redesigned for iOS 7. Stow 2 is also universal and it looks great on iPads. Most of the features from Stow 1 are available for free in Stow 2 but there are some power user features that can be unlocked for a $1.99 in app purchase. Stow Premier allows syncing with TripIt for profiles, syncing across devices using a custom sync solution, weather forecast for your trip locations for each day and also multiple traveller profiles. As with most good app redesigns, Stow 2 for iOS 7 has lovely playful animations in it and makes a nice and subtle use of blurring where needed. The iPhone app has a few visual issues with ambiguous buttons on the main page but the iPad app is on another level of awesome. I find myself using Stow 2 on the iPad much more than on the phone when planning trips and packing.
Stow 2 is available for free as a universal app on the App Store.