Phewtick

The colls told me about this apps 'Phewtick' during lunch and I downloaded it!

"Phewtick is an app that allows its users to meet new people, and you can even earn money while doing so.The entire process of meeting new people and earning points to exchange for money relies on the use of QR codes. After you have met someone face-to-face, just launch Phewtick, scan his/her QR Code to record the meetup, and you’ll get points which can be exchanged for cash. For every hundred points recorded, it can be converted to 10 yen (0.12 USD), which can then be collected via Paypal or bank accounts. You are only allowed to scan the same person’s code one hour after the last scan. And the amount of points you receive changes each time you scan. In other words, points allocation is random which makes the app really addictive (almost like a lottery)." Quoted from Yahoo Finance.

It's quite fun-at least for now.