What it lacks in depth or features, HQ: To Do makes up for in speed, style, and simplicity. For those interested in getting things done, it's a good place to start.
HQ: To Do for iPhone is for those who need more than Apple's built-in Reminders app, but not anything as complex or costly as some of the full on GTD (Getting Things Done) or power-user productivity apps available in the App Store. Part of the new generation of big, bold, user experiences, HQ: To Do does a good job of making sure most of what you need is always right under-thumb, and available, with a couple taps or swipes. And it looks great doing it.