Reversible Octopus Happy and A is a fun and interactive app available on the Android platform. Developed by Light Blue Light, this free lifestyle app is designed to help users express their moods with playful octopus characters. The app is compatible with Android 9.0.

Upon opening the app, users are greeted with a selection of adorable reversible octopus characters to choose from. Each octopus has two different expressions, one on each side, which can be easily flipped to indicate the user's current mood. The app also features a simple sharing function, allowing users to share their mood with others via social media or messaging apps.

Overall, Reversible Octopus Happy and A is a fun and lighthearted app that offers a unique way to express one's mood. While it may not be the most practical app out there, it is sure to put a smile on the face of anyone who uses it.