Offline Compass Altimeter

Offline Compass Altimeter
100% Offline • Zero Data Collection • For Middle East, Africa, Southeast Asia
Free Offline Compass Altimeter is a lightweight, secure, and fully free outdoor tool built exclusively for nomads, outdoor enthusiasts, field workers, and travelers in the Middle East, Africa, and Southeast Asia. Designed for no-signal, no-internet extreme environments, all functions run 100% locally on your device—no internet connection required at all.
CORE FEATURES
• 100% PURE OFFLINE OPERATION: All measurements, calculations, and data storage are completed locally on your device. No network requests, no cloud sync, no data uploads. Works perfectly in deserts, jungles, remote mountains, border areas, and any place with no mobile signal.
• OFFLINE COMPASS: Real-time azimuth display based on device built-in sensors, magnetic north/true north dual mode, built-in global offline IGRF model for local magnetic declination calculation. Auto-detects magnetic interference with visual calibration guide, works even without GPS signal.
• OFFLINE ALTIMETER & BAROMETER: Dual GPS/barometric altitude mode, built-in global offline ISA atmospheric model, real-time display of altitude, air pressure, and elevation trend. Supports manual local calibration for higher accuracy, stable in high altitude and extreme temperature environments.
• SCENE-SPECIFIC FUNCTIONS:
Nomad Exclusive: Offline waypoint marking with preset categories (water source, pasture, camp, mosque), offline waypoint navigation with real-time bearing and distance calculation, no map needed.
Middle East Exclusive: Offline Qibla direction calculation, no internet required, perfectly fits Muslim users' worship needs.
Southeast Asia Exclusive: Offline tide time calculation based on local astronomical algorithm, ideal for island trips and river trekking.
Africa Exclusive: Preset waypoint categories for hunting spots, villages, mining areas, enhanced compass mode without GPS signal.
• PRACTICAL OUTDOOR TOOLS: Offline elevation track recording, sunrise/sunset time calculation, slope measurement & level, one-click data screenshot, screen always-on lock,
100% PRIVACY & SECURITY
We strictly follow a zero data collection policy. We never collect, share, or upload any of your personal information, location data, or device information. All data is encrypted and stored only on your local device, fully under your control. Fully compliant with App Store privacy rules, GDPR, and global data protection regulations.
PERFECT ADAPTATION
• Compatible with iOS 15.0 and above, works on all iPhone and iPad models, including old low-end devices
• Full RTL (Right-to-Left) layout support for Arabic, auto-follows system language
Perfect for desert nomads, grassland pastoralists, jungle explorers, mountain hikers, field workers, border patrols, and all users who need reliable offline orientation and altitude measurement.