Endless Massager is a free vibration therapy app developed by nekobukiya for Android users. The app is designed to provide a massage experience that continues even when the screen is turned off, thanks to its sleep mode. When you exit the app, it will continue to vibrate in the notification area, so there's no need to worry about stopping the massage due to an accidental operation.

The app is perfect for anyone looking to relieve body fatigue and stress. With the vibration pattern changing based on the position you tap the screen, you can customize your massage experience. The vibration is faster when tapped on the right and stronger when tapped on the top of the screen.

The app also features a timer function, which makes it safe to fall asleep during the massage. It's important to note that the strength of the vibration depends on the device, and it may not be as strong as other apps. If the vibration is weak, the developers recommend purchasing a proper massager or changing to a device with a stronger vibration.

Overall, Endless Massager is a great app for anyone looking for a customizable vibration therapy experience. However, it's essential to keep in mind that the developers are not responsible for any direct or indirect losses that may arise from using this app.