Even the name of the app points to its competition. If the sky is dark I am most likely to bring an umbrella. It is however beneficial if I know I need to walk

Even the name of the app points to its competition. If the sky is dark I am most likely to bring an umbrella. It is however beneficial if I know I need to walk somewhere in a given amount of time. Seeing when the sky will be dark but no rain would be nice, but Ill still have my umbrella with me regardless.