Compass & Altimeter APK + MOD vv3.9.1 (Premium Features Unlocked, All Themes Unlocked, All Coordinate Formats Unlocked, Advanced Tools Unlocked, Ads Disabled)

Compass & Altimeter is a utility application for Android that uses device sensors to display magnetic heading, true north bearing, altitude above sea level, and geographic coordinates. It is designed for outdoor navigation scenarios such as hiking, climbing, and geocaching where cellular data may be unavailable. The app functions as a digital replacement for a physical compass and altimeter, providing readings in multiple units and coordinate formats.

What This Mod Unlocks

• Premium features unlocked, removing all paywalls within the official version.
• All color themes and interface customization options are available without purchase.
• All coordinate system formats (MGRS, UTM, DD, DMM, DMS) are fully accessible.
• Advanced calibration tools and historical data logging features are enabled.
• Advertisements are disabled.

The mod is applied directly to the APK file. No additional activation steps are required after installation. All premium features are available immediately upon launching Compass & Altimeter.

The modified version of Compass & Altimeter requires Android 6.0 or higher. It needs access to device sensors including the magnetometer, accelerometer, and barometer (if available). The installation occupies approximately 35 MB of storage. Root access is not required.

Installation follows the standard sideload process for modified APKs. Download the modded APK file. Enable installation from unknown sources in Android settings. Open the downloaded file with a file manager to initiate the installer. Confirm the installation when prompted. Launch Compass & Altimeter from the app drawer.

Several edge cases exist. Altitude readings rely on barometric pressure data from the device sensor or a network-provided baseline; accuracy varies significantly between hardware. The magnetic compass requires regular figure-eight calibration for precision, which remains a user responsibility. The mod does not bypass any server-side license checks for cloud features, as the app primarily operates offline. Clearing app data will reset user preferences and saved locations but will not revert the premium unlock.