Weather apps are a dime a dozen and they all pretty much do the same thing…give you their best guess about the weather.

Most of them are free, so featuring yet another weather app that actually costs money wouldn’t make much sense unless it did something really useful.

Well, the Weather or Not app does actually do something different that you might find useful and worth paying for.

It pairs your location, calendar events and the weather forecasts all on one screen so you can see how it will affect your plans.

In addition to traditional weather information, you’ll see your calendar events each with their own forecasts and locations.

This can be especially helpful if you travel a lot and need to properly pack for a variation of weather forecasts in various locations.

The app uses the Weather Channel’s forecasts and provide a detailed 7-day weather graph integrated with your events.

Weather or Not costs $2.99 and it’s currently only available for iPhone users via the Apple app store.