脳活力診断 (Brain Vitality Diagnosis) is an iPhone app developed by NOWPRODUCTION CO.LTD. This free game allows you to easily assess your brain vitality and improve your memory skills.

The app begins with a simple brain vitality test to evaluate your cognitive abilities. It also offers intermediate and advanced levels for those seeking more challenging questions.

In addition to the diagnostic tests, the app provides daily training exercises in the "Today's Training" section. These short exercises are designed to be completed in a few minutes, allowing you to gradually improve your memory skills.

One unique feature of the app is the "Brain Garden" where you can use the coins earned from training to grow flowers. With over 180 different flower species to unlock, the Brain Garden adds a fun and rewarding aspect to the overall experience.

Overall, 脳活力診断 is an engaging app that combines brain testing, memory training, and flower gardening to help you enhance your cognitive abilities in an enjoyable way.