The only thing these apps can’t do is buy you a bigger closet

If you’re a shoe fiend, mobile apps are a great way to window-shop when you’re stuck in a boring meeting or passing time in the waiting room at the dentist. We’ve rounded up a few of the very best shoe-shopping apps for iPhone and Android that are cheap, easy to use, and offer a broad selection.

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1. iShoes (iOS)

This app tops our list as the most comprehensive shoe shopping app for iPhone. It features over 50,000 shoes, and you can search by size, color, brand or style. Each shoe has an extensive profile, so you’ll know exactly what you’re getting if you decide to buy. The app allows you to create a wishlist and share it with friends, so you can drool together (or drop hints about your birthday). It also alerts you when your favorite shoes are on sale, so you can get the best deal. (Cost: free)

2. Shoe Size Converter (Android, iOS)

If you do any online shopping with overseas vendors, this app is a must-have to prevent you from shipping over a pair of canoe-sized pumps because you got the size conversion wrong. It currently supports size conventions in the US, UK, Russia, Japan, Australia, and more, and can also help you navigate between size differences in men’s, women’s, and unisex shoes. The interface is simple and easy to use, it’s free, and it’s available for Android devices including LG, HTC, and Samsung cell phones. (Cost: free).

3. Today’s Shoe (iOS)

This is an app for dreamers””a selection of the highest-end fashions in New York, including Jimmy Choo, Manolo Blahnik, and Christian Louboutin. Of course, the app allows you to order anything on the menu, if you happen to have $900 burning a hole in your wallet, but for most of us, this is just fun eye-candy. You can look at each shoe in all available colors and sizes, create a favorites list, and do a random search to check out the latest styles from your favorite designer. (Cost: free)

4. Nina Shoes (iOS)

If you’re looking for shoes you might actually buy, this is a good mid-range option. It has a more complete interface than Today’s Shoe, with better info about heel length, exact dimensions, and other things you might consider before ordering. It also allows you to view the shoe from various angles to get a better idea of how it will look. (Cost: free)

5. RunnerShoe (iOS)

This is a great app to keep your running shoes in good condition. It will track the mileage of each run you take, and keep a cumulative tally so you can be ready when it’s time to replace them. As your mileage approaches the replacement limit, the number will turn from green, to yellow, to red, letting you know your shoes have just about had it. While it’s not as glamorous as the previous apps, it’s a good tool to help keep you and your athletic shoes in good shape. (Cost: $0.99)