Those words were spoken by Steve Jobs when he unveiled the iPhone in 2007.

He was partially right.

While it was the iPhone that jumpstarted the smartphone industry, it was the introduction of the first third-party apps a year later that really unlocked the potential of this new class of device.

When we set out to pick the 100 best iPhone apps of all time, our intention wasn't to simply do a list of the most useful or entertaining apps currently available. Just as a great teacher in your youth may have helped shape who you are today, groundbreaking apps of the past have had tremendous impact on the iPhone experience, even if their influence may have since waned or faded entirely.

Ranking them was even more of a challenge. After whittling the list down to 100, we rated each app on its design, usefulness and cultural impact. We also took into account App Store data provided by analytics firm App Annie. Here's a full breakdown of our methodology.

Though many names on this list are familiar, there are some surprises, too. These are the viral hits, the games we couldn’t put down, the utilities that helped us master our workday, the apps that burned brightly and then faded away, the ones that first made the iPhone feel like magic — and those that still do.