The well-rounded application, for the most part, is easy to figure out and use. However, Strive doesn't let you edit your entry even with "Edit" available. All edit allows you to do is delete the entry while other apps take you right to the content to modify it. You also can't reverse a task that you accidentally mark as completed.
Another feature, Explore, offers video and articles about the science of happiness as well as links to online resources. Anyone can access the online resources, but at least the rest of the application has rich features that make it worth the purchase if you like what you see. Live Happy plays nice with your iPhone's contacts, email and camera. Most of the time, you can return to Live Happy without going to the iPod's home screen, but not when you send an email. Signal Patterns is also responsible for the Personality iPhone app. This one contains more features and activities that will support you in your efforts to live your life to the fullest.
Live Happy is currently available for just 99 cents in the iTunes Store. This is an app I would highly recommend!
Images credit: All images are screenshots of Live Happy by Signal Patterns.