Hayhay Dijital Cüzdan is an Android application developed by HAYHAY BİLİŞİM VE TEKNOLOJİ HİZMETLERİ A.Ş. The app is free and falls under the category of Business & Productivity with subcategory Finance. The app is a cashback wallet that gives you instant cashback on your friend's cashback earnings. When you invite ten friends and they start earning cashback, you will earn cashback too. The app also offers cashback on purchases made at CarrefourSA, Yunus Market, Koton, Mavi, Boyner, and many more retailers. You can even earn cashback on petrol purchases at Petrol Ofisi stations. In addition, the app also allows you to defer your Başkentgaz natural gas bill payments for up to 45 days and provides an interest-free installment option for your gas bills. You can also transfer money and load your wallet using your bank account, credit card, or EFT.