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Download “PolyU GreenCoin” App to earn Green Coins and convert them to e-coupons easily!
It is open for all current PolyU staff and students. Start your green journey and go greener every day!

Hardware and software requirements

Mobile phone with iOS® 10 and above or with Android™7.0 and above. It is available through the Apple App Store and Google Play.

Where and how can I earn Coins?
  • Read the EARN COINS and the ANNOUNCEMENTS sections for more information;
  • Bring-your-own (BYO) food and beverage container for selected categories of food items and drinks intended for takeaway purpose and perform a transaction at Communal Student Canteen (文康學生飯堂) (3/F, Communal Building) and Communal Student Restaurant (茶樓) (4/F, Communal Building);
  • Drop a plastic beverage bottle into the Reverse Vending Machine (RVM) at the podium level of VA (Shaw Amenities Building), or at the podium level of Block Y (Lee Shau Kee Building), or on 2/F of Block Z and scan the QR code as shown on the machine’s panel
What are the e-coupons available and where can I use them?
  • Read the E-COUPONS and the ANNOUNCEMENTS sections for current offers;
  • HK$3 Dine-in e-coupon can only be used in Communal Student Canteen (文康學生飯堂) (3/F, Communal Building) and Communal Student Restaurant (茶樓) (4/F, Communal Building) for dine-in and during business hours from Monday to Friday (except Public Holidays); a daily quota applies;
  • Individual e-coupon for the FREE booking session of Fitness Room, Basketball Court, Indoor Soccer Court, and Badminton Court in Block X Sports Centre can only be used during the opening hours of the respective sports venues; a daily quota applies