CHaiNCHaiN

CHaiN CHaiN is a digital membership card app for restaurants. Keep all your favorite restaurant memberships organized in one place.
Membership Cards
Get your digital membership card instantly when you visit a participating restaurant. No more losing paper cards or forgetting them at home.
Points
Earn points every time you visit. As your points grow, restaurants will send you exclusive coupons and rewards.
Coupons
Receive discounts and special offers directly in the app. Show your coupon at the restaurant and redeem it on the spot.
Gacha
Spin the prize draw when you sign up as a member at a restaurant. Win surprise rewards as a welcome gift.
All-in-One
Whether you visit one restaurant or dozens, all your membership cards, points, and coupons are managed in a single app.
Easy to Start
Sign in with your Google account — no lengthy registration forms, no extra passwords.
6 Languages
Available in Japanese, English, Chinese, Korean, Thai, and Vietnamese. Perfect for use while traveling abroad.