It's a familiar story - you're looking for a decent bar to take the evening up a level but aren't quite sure what's nearby. Cue endless wandering about and debating the best move until you somehow end up in a sticky-floored student dive on Euro house night. It doesn't have to be this way.

The people behind the Deck of Secrets guides which began in Melbourne have made a valiant attempt to end this madness with new iPhone application, DRINK London. Your iPhone GPS pinpoints the closest of the 75 bars in the guide (selected by a panel of industry brains). You can then browse the pictures and descriptions to decide which one you fancy. When you've made your choice, let Google Maps guide you through the city streets, leaving you to bask in the appearance that you might know what you're doing. £2.39 from the App Store