커플끼리 is a free Android app developed by 레드제이. It falls under the category of Social & Communication and offers a range of features specifically designed for couples.

With 커플끼리, you can easily register as a couple by following a few simple steps. First, input your own username and click the "Next" button. Then, enter the username and mobile number of your partner, and click "Next" again. That's it - you're done!

One of the key features of 커플끼리 is the ability to schedule and share important dates and appointments on a shared calendar. This allows you and your partner to stay organized and never miss any special occasions or plans.

Additionally, 커플끼리 provides a private diary feature where you can share your thoughts and feelings with your partner. It serves as a virtual diary where you can express your love and affection, creating a digital keepsake of your relationship.

Another useful feature of 커플끼리 is the ability to share your location with your partner. This feature provides peace of mind, allowing you to easily check if your partner has safely arrived home without any worries.

Please note that due to recent policy changes in the Google Play Store, certain features such as messaging, calling, and instant messaging are no longer available in 커플끼리. However, you can still enjoy these features by downloading the app from the One Store.

Overall, 커플끼리 is a great app for couples looking to enhance their communication and stay connected. With its user-friendly interface and range of features, it provides a convenient platform for couples to share important moments, thoughts, and locations.