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Replace Contacts, Calendar with Pocket Informant
Why have data spread across three apps when you can have it in one: Pocket Informant.
Having all your data in one place not only makes getting to it faster because you don't have to constanty shuffle apps, but you can also makes organizing and backing up your vital data a lot easier.
Pocket Informant is packed with dozens of features that allow you to take control of your busy schedule. Highly customizable, Pocket Informant comes highly recommended, despite the premium price.
Price: $9.99 for the iPhone version | $14.99 for the universal version.
Image source: Web Information Solutions.