Image via CrunchBase

If you’re a frequent flier, Gate Guru is a must-have iPhone app. I just downloaded it, used it when I flew to Denver last week, and am not sure how I managed without it.

Before I had this app, I used to get frustrated when I traveled since it was next to impossible to determine which restaurants and stores were located close to my gate. This was particularly problematic when I was short on time and needed food before the next leg of my trip. And, unfortunately, most airport maps inexplicably provide only terminal and gate information.

Enter Gate Guru. This app provides you with information about the closest restaurants, ATMs, bathrooms and shops. It also offers other travelers reviews of the different businesses located in a given airport.

It’s an extremely useful app and, best of all, it’s free. So, if you’re a frequent flier, you need to add this app to your repertoire.