Apps like SonarPen Calibrate

Here are some great alternatives to SonarPen Calibrate by GreenBulb :
Touchscreen Calibration
Touchscreen Calibration
★4.0
Accelerometer Calibration
Accelerometer Calibration
★3.9
Touchscreen Calibration: Repai
Touchscreen Calibration: Repai
★3.8
NoiseCapture
NoiseCapture
★3.6
Touch Screen Test
Touch Screen Test
★3.3
Motorbike Speed
Motorbike Speed
★5.0
ArgyllPRO ColorMeter
ArgyllPRO ColorMeter
★4.2
Vibration Meter
Vibration Meter
★4.4
MusicReader
MusicReader
★3.5
FL STUDIO MOBILE
FL STUDIO MOBILE
★4.0
Ophaya Pro+
Ophaya Pro+
★4.0
Stroke Rate Coach
Stroke Rate Coach
★4.8
MindBoard ( for S Pen )
MindBoard ( for S Pen )
★3.2
Phone Settings - All Settings
Phone Settings - All Settings
★4.0
Audio Evolution Mobile Studio
Audio Evolution Mobile Studio
★4.4
projectM Music Visualizer Pro
projectM Music Visualizer Pro
★4.6