OK STAMP IT is a free Android app developed by Circle K Hong Kong. It falls under the Lifestyle category and offers a convenient way for customers to earn e-stamps and redeem rewards through Alipay HK. The app not only helps customers earn stamps but also provides exclusive offers to its registered members.

With OK STAMP IT, customers can register as members and earn e-stamps by purchasing designated products at Circle K stores. Once they have collected enough e-stamps, they can redeem rewards through Alipay HK. The app also offers exclusive deals and discounts to its members, making it more attractive for customers to use.

Overall, OK STAMP IT is a useful app for Circle K customers who want to earn rewards while shopping. The app is user-friendly and offers a hassle-free way to earn and redeem rewards.