User Manual & Help Center
Welcome to the support page. Here you can find instructions on how to get the most accurate angle measurements from the app and solutions to common questions.
Quick Start Guide
1. Prepare Your Device
For the most accurate readings, remove any thick cases from your device. Place your phone on a flat, stable surface to calibrate before measuring.
2. Choose Your Measurement Mode
Open the app and select from the available modes: surface angle measurement, camera-based measurement, or manual protractor. Each mode is optimized for different use cases.
3. Place & Measure
Place your device along the edge or surface you want to measure. The angle reading will appear on screen in real-time. Hold steady for the most accurate result.
4. Lock & Save
Tap the lock button to freeze the current angle reading. You can then take a screenshot or save the measurement for later reference.
5. Calibrate if Needed
If readings seem off, use the calibration option in settings. Place your device on a known flat surface and tap calibrate to reset the zero point.
Understanding the Features
Real-Time Angle Display
The app shows the current angle in degrees with decimal precision. The visual protractor dial rotates in real-time as you move your device, giving you immediate visual feedback.
Haptic & Audio Feedback
Enable haptic feedback in settings to feel a subtle vibration when you hit common angles like 0, 30, 45, 60, and 90 degrees. Audio cues are also available.
Troubleshooting Common Issues
"The angle reading keeps drifting."
- Calibrate: Go to Settings and recalibrate on a known flat surface.
- Stability: Ensure the device is held firmly against the surface without wobbling.
- Interference: Move away from strong magnetic sources like speakers or electronic equipment.
"The reading doesn't match my physical protractor."
- Case: Remove your phone case, as it may prevent flush contact with the surface.
- Surface: Ensure both the device and the surface are clean and flat.
- Recalibrate: Reset the calibration from the settings menu.
"No Sound or Vibration."
- Check your iPhone's silent mode switch.
- Go to your device Settings and ensure the app has permission to use Haptics/Audio.
Frequently Asked Questions (FAQ)
Q: How accurate is the angle measurement?
A: The accuracy depends on your device's sensors. Modern iPhones typically achieve accuracy within +/- 0.5 degrees under ideal conditions. For critical work, always verify with a professional tool.
Q: Can I measure angles on non-flat surfaces?
A: The app works best on flat surfaces. For curved or irregular surfaces, use the camera-based measurement mode which allows you to visually align the angle guides.
Q: How do I measure the angle between two surfaces?
A: Place your device on the first surface and lock the reading. Then place it on the second surface. The app will show both the current angle and the difference between the two measurements.
Q: Does the app work in landscape mode?
A: Yes. The app supports both portrait and landscape orientations. The protractor dial automatically adjusts to give accurate readings in any orientation.