Angle Guide For Watch app for iPhone and iPad

INSTRUCTIONS
When the watch is tilted, the tilt angle is displayed in the three axes of yaw, pitch, and roll.
Long-tap the number of an angle degree on the screen: The angle is set "On the ground" is displayed in the upper left corner of the screen.　
Double-tap the number of an angle degree on the screen: The angle is reset and "On the table" is displayed in the upper left corner of the screen. Each time you double-tap, the angle is reset.
Long press the number of an angle degree on the screen to initialize the angle. The angle based on the ground is displayed. "On the ground" is displayed in the upper left corner of the screen.
Setting: You can set the angle notification function.

*Screen Description
On the ground: Default value. Displays the angle to the ground.
On the table: Displayed when the angle is reset.
Yaw: Rotation angle of the horizontal plane with the vertical axis. If the Angle Notification function is set to On, the angle will be displayed in red from ±5 degrees of the set angle. If Vibration is set to On, The angle is displayed in red letters with vibration.
Roll: Angle of rotation on the front-back axis. If the Angle Notification function is set to On, the angle will be notified in orange from ±5 degrees of the set angle. (If Vibration is turned on, The angle is displayed in orange letters with vibration.
Pitch: Angle of rotation on the left/right axis. If the Angle Notification function is set to On, the angle will be notified in green from ±5 degrees of the set angle. (If Vibration is turned on, The angle is displayed in green letters with vibration.
Setting: Displays the angle set by the angle notification function on the Setting screen.
Save: All angles (yaw, pitch and roll) of the notification can be changed to the current angle.

Note: The angle displayed is the angle detected by the gyro sensor of this watch. To measure the angle accurately, use a calibrated angle meter or inclinometer instead of this application.