나침반 - 동서남북 방위 측정, 고도계 수평계

A free compass app combining accurate East, West, South, North directions, an altimeter, and a level!

This is a free compass, altimeter, and level app that allows you to precisely measure direction on a single screen, from checking your home's orientation when moving to hiking, camping, and leisure activities.

Anyone can easily check their direction with clear, large text and Korean East, West, South, North (E·W·S·N) direction indicators. It is useful both indoors and outdoors, as it provides a GPS-based altimeter and digital level function. Experience the stylish neon mint glow-in-the-dark compass screen that allows you to see clearly without glare, even in dark campsites at night or indoors!

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■ Guide to Key Features

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1. Large and easy-to-read East-West-North-South compass screen

- Large azimuth (°) number in the center and intuitive Korean direction indicators

- Neon Mint Glow-in-the-Dark Mode: Bright and clear visibility of scales and reference lines even in dark night environments (One-touch ON/OFF)

- Free switching between day and night dark themes tailored for outdoor visibility during the day and night

2. GPS Location Information and Precision Altimeter

- Real-time Altimeter: Real-time measurement of the current location's elevation (altitude) and movement speed

- Automatic lookup of latitude and longitude coordinates (decimal and degrees, minutes, seconds) and road/lot number addresses, and one-touch copying

- Detailed information on GPS satellite reception status, error range, and magnetic declination

3. Support for Precise Magnetic North vs. True North Switching

- Supports Magnetic North (pointed by the smartphone's geomagnetic sensor) and True North mode (corrected for location-based declination)

- Reduces environmental errors, enabling accurate direction identification for moving Feng Shui, furniture placement, and outdoor hiking

4. Multifunctional Level & Inclinometer

- Simultaneously displays a 2-axis horizontal and vertical digital level and a vertical inclinometer on the compass screen

- Supports one-touch zeroing on flat surfaces for level calibration and reset

- Optimized for level measurements such as interior furniture placement, tent setup, and hanging picture frames

5. Sensor Status Monitoring & Accuracy Calibration

- Real-time monitoring of ambient magnetic field strength and sensor reliability

- Provides figure-eight rotation correction and warning alerts in case of magnetic field interference

6. Top Bar Notifications: Compass & Save Measurement Data

- A convenient feature that allows you to check real-time bearing on the status bar (top bar) even when the app is closed

- Saves measured bearing, coordinates, and altitude data to your device and allows for easy sharing via a text file (CSV)

7. A Clean Utility with No Ads or Sign-ups

- Immediate free use without the hassle of signing up or collecting personal information

- A pleasant environment free from unnecessary ads or external trackers that consume battery and data

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※ Sensor and Environment Guide

- This compass app uses the magnetic sensor (geomagnetic sensor) and accelerometer built into your device. Some functions may be limited on devices without these sensors.

- Temporary directional errors may occur around magnetic cases, electronic devices, or metal structures, so please perform figure-eight calibration.

- Altimeter and position coordinates may have errors depending on the GPS satellite reception environment, and this is not a professional legal surveying instrument.