Compass Altimeter: Sun & Moon

KnockDream Technology

In-app purchases

About this app

Compass Altimeter is a clean, pro‑grade altitude and compass tool that fuses GPS with (iOS) barometer/absolute altitude for faster, more accurate live readings—ideal for hiking, exploration, landscape photography, and stargazing.

Key Features
• Live altitude: GPS + barometric fusion with accuracy readout
• Relative altitude: set a base point to track ascent/descent
• Compass: True/Magnetic North, localized direction text (NESW), subtle haptics
• Calibration & interference: magnetic interference detection with calibration tips
• Sun & Moon: elevation/azimuth, sunrise/sunset and moonrise/moonset
• Photography aide: golden/blue hour with bearings for better framing
• Coordinates: switch between Decimal and DMS; one‑tap copy
• Sources & accuracy: Auto/GPS/Barometric modes; GPS High/Medium/Low accuracy
• Pressure: live pressure with units (hPa/mmHg/inHg/psi)
• Personalization: m/ft, 12/24‑hour, language, precision display, splash animation

Design & Performance
• Large, legible typography with modern UI
• “Fast‑then‑precise” positioning and smart lifecycle for stability and battery savings

Use Cases
• Hiking and outdoor exploration
• Landscape photography timing (golden/blue hour)
• Astronomy and education
• Travel logging and altitude lookup

Privacy & Permissions
• Location while in use only; used for altitude and sun/moon calculations (no continuous background tracking)
• Motion/Barometer (iOS) improves altitude accuracy
• Preferences stored on device; no personal data uploaded

Disclaimer
• Measurements depend on environment/device and are for reference only
• Not for aviation, medical, or life‑critical use

Ratings and reviews

⭐️⭐️⭐️⭐️⭐️ Great and Reliable Compass App! I’ve been using UN Compass for a while and it works perfectly. The design is clean, accurate, and easy to use. It doesn’t drain the battery and shows directions instantly, even offline. I really like how stable it is compared to other compass apps. Highly recommended for anyone who needs a precise and trustworthy compass tool!

Portrait mode only, can't read in landscape.

So far so good. Doesn't sell your info so that's a great selling point!

What’s new

This update improves real-device altitude and compass reliability.

• Clearer altitude accuracy and barometric precision states
• Localized uncalibrated altitude wording
• Compass pauses while the camera is open to avoid background sensor and haptic activity
• Improved startup and saved settings stability