POPsale is a free, Android-based lifestyle app developed by shoppingGAI Company Limited. It is designed to help you stay on top of the latest deals and discounts offered by nearby shops. With POPsale, you can easily subscribe to offers by selecting your preferred categories, including food, fashion, beauty, gadgets, lifestyle products, and more.

One of the key features of POPsale is its ability to search for offers or discounts provided by nearby shops. You can also tap on the Hong Kong MTR route map to find deals along your route. Additionally, POPsale offers notifications for offers or discounts that are relevant to your current location. You can also filter out offers that you are not interested in by selecting your favorite categories.

Please note that timely delivery of traffic offer or discount messages and alerts may be affected by user traffic on individual mobile phone networks.

Overall, POPsale is a powerful and personalized offer notification app that can help you save money while shopping.