Describing the app in an interview, the founder said it's in between an escort service and a dating app. An app called Ohlala launched in Germany earlier this year in a bid to take the Tinder-style concept of meeting people and setting up dates a step further - by letting woman set a price for men to go out with them. Plus, it may come in handy for those who plan to use or are using the Escort Live app. Naval engagements while rescuing British troops from Crete in May cost the British navy dearly. The cost of the Cowboys 4 Angels service ranges from $1,000 for four hours to $15,000 for a week. There are premium services too for at an expensive cost to advertise in multiple cities. Sixty aircraft were far from adequate in such a climate and terrain where "there is no favourable season for operations" (Earl F. Ziemke).