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

Seems to be a premium product! A wide set of meters and gauges and it states it's not: collecting data, selling information, or advertising. A complete product right out of the box?! Truly then five stars, if so

Not super accurate. Standing in the ocean at a California beach and it says I am 139 feet above sea level. Close enough for my uses, but if you NEED accuracy, THIS APP ISN'T IT.

only critique is the widget altimeter does not change units when the settings change. seems stuck in meters. but beyond that it seems amazing straight forward and easy to use

What’s new

Improved altitude accuracy. Fixed an issue where some Android devices showed tens of meters of altitude at the coast. Barometric altitude is now shown only after a stable GPS fix has calibrated it; until then, the app asks you to step outdoors instead of showing an unreliable estimate. Also includes reliability improvements.