If you slouch while sitting Posture Perfect is the perfect solution for you and it’s totally free.Reduce back pain and muscle strain using a simple and free app for your Android phone. It’s as simple as:1) Tapping the "Start Monitoring" button2) Putting the phone in your pocket (make sure the phone screen is facing OUTWARD)3) Then getting alerted when you’re slouching In a sitting position Posture Perfect uses the accelerometer to detect when you’re slouching and alerts you with either a vibration or a gentle alert tone. Sit up straight again and hear a reset tone.Includes 3 preset modes for different levels of movement while sitting, or you can customize the settings yourself. Walking is not supported in the free version.You can change the following settings:• Amount of slouching which triggers an alert• Number of times alert is made once you start slouching• How many times to repeat alert• Vibrate or play tone for alert (or both)• The sensitivity of slouching detectionPLEASE NOTE: This free version only works in a sitting position. It will not function if you are walking or running.