We've all been there.

Whether you've lost your purse, phone, card or whatever else on a night out, it can be super scary. You might not know where you're friends are and just want to get home safe and sound. Well, that's where this new app, Flag, comes in. Flag, designed by Galway entrepreneur Richie Cummins, is an app which lets users travel and pay with no phone, bank card or cash on them. The app wants to 'give Dublin the gift of safety this Christmas,' and we think it'll do exactly that. All you have to do is download Flag -The Taxi App from the app store, and sign up. Then, add a picture and emergency four digit pin number. You can use the app to flag down a taxi like usual, however, if you ever find yourself in a situation without funds or friends, you can pay via the app at a later time. And, if you're run into an incident where your phone is dead or stolen, you can flag down a taxi and use your name and emergency pin number to pay for the taxi. Pretty handy, huh? After a very successful trial run in Galway, it is now arriving in Dublin just in time for Christmas.