HUMPTY DUMPTYハンプティーダンプティー is a free Android app developed by HumptyDumpty that allows users to carry their membership cards with ease, shop with exclusive coupons, and receive the latest news and product recommendations.

The app's main features include a home page that lets users search for nearby stores, favorite store information, and a daily chance to win coupons. Users can also access the latest information and recommendations, staff blogs, and original photo frames to take pictures and post them on social media with the hashtag #ハンプティーのある暮らし. The app also has an online shop that offers a wide selection of products, including gift wrapping options for various occasions.

HUMPTY DUMPTYハンプティーダンプティー also provides app-exclusive coupons, easy access to point cards for physical stores, and notifications for deals and promotions. The app requires Android 9.0 or higher for optimal performance. Certain features may not be available on older versions of Android. The app may also require permission to access location and storage for better functionality.