Whether you want to track every purchase you make at the grocery, the number of hours you spent at the gym, or every book you've ever read, do so with the charmingly simple data visualization app Mem:o (Free). It allows you to view each snippet of data, or memo, as a circle, with bits of text and numbers to help add meaning. You then collect each of these related memos onto a board or calendar, letting you see all your information at once. Share your collections with friends on Facebook or Twitter, or just hoard them all and reflect back some day.
Remotely access any software on your Mac or PC as if it were a native iOS app from your iPad with Parallels Access ($Free). No matter where you are in the world, so long as you have an active internet connection, you can use software from your home or office machine, and access files. Features like tapping, swiping, pinching, and scrolling make it feel like you are working on an application meant for your iPad, while select, drag, copy, and paste let you seamlessly switch between remote apps and iPad apps. A built-in app launcher and app switcher keep you as productive as you would be on your full-size machine.
Somewhere between a crossword puzzle and a choose your own adventure novel, you'll find Blackbar ($3) — a word game of censorship and storytelling. This game tells the story of a science fiction dystopian future through a series of redacted documents, where the story (and the game) gets more complex as you make your way through. As you fill in the blacked out words, the conspiracy behind the story becomes less opaque. And, while it doesn't bash you over the head with its views on the suppression of free speech, its message against censorship is certainly present.