Long Breath Training Timer is a free Android app developed by SHIGETO TAKAGI that helps users perform deep breathing exercises for meditation and mindfulness. With a simple interface, the app is easy to use and offers a range of features to make the exercise enjoyable.

The app offers a timer that can be set to 3 seconds or 7 seconds, with options for 6 repetitions. It includes a 5-second preparation time before the timer starts. Users can choose to turn on or off the sounds and vibrations that notify them of the passage of time. The app also keeps a history of the user's progress, allowing them to track their performance over time.

Overall, Long Breath Training Timer is a great app for anyone looking to improve their breathing techniques for meditation and mindfulness. Its simple design and features make it easy to use, and the ability to track progress is a great motivator for users.