Uniqode - Uniqode: Revolutionizing QR Codes, Simplifying Solutions.
PenPal World - Connect with people all over the world
QR Code Generator For Developers - A quick API to generate QR codes in your apps
Unbordered - Unbordered app comes up with features to help you in finding the perfect language practice and exchange partners so you can practice foreign languages right through your mobile phone.
The QR Code Generator - Free Online QR Code Generator to make your own QR Codes. Supports Dynamic Codes, Tracking, Analytics, Free text, vCards and more.
Anygram - Anygram app offers features that let you meet new people so you can make new foreign friends practice native languages to learn something new.