# Compass Altimeter: Sun & Moon

> GPS Elevation & Barometer

Canonical page: [https://chrome-stats.com/d/id6752685064](https://chrome-stats.com/d/id6752685064)

## Overview

- **ID:** `id6752685064`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Fuzhou Knock Dream Technology Co., Ltd.
- **Category:** Navigation
- **Rating:** 4.50 / 5 (2 ratings)
- **Version:** 1.5.1
- **Last updated:** 2026-07-30
- **First published:** 2025-09-25
- **Size:** 41 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/compass-altimeter-sun-moon/id6752685064)
- **Website:** [https://lightpollutionmap.app/](https://lightpollutionmap.app/)
- **Privacy policy:** [https://laysky.com/en/compass-privacypolicy.html](https://laysky.com/en/compass-privacypolicy.html)

## Description

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

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Compass Altimeter Subscription Service Introduction:  
【Premium Membership Features】  
- Red light eye protection display for night use
- Display measurement precision information 
- Display environmental magnetic field data in real-time 
- New restricted features to be added in the future  

Subscription Options:  
- Monthly: $1.99/month  
- Yearly: $9.99/month (billed annually)  
- Lifetime: one-time purchase $19.99  

- Payment: Once the user confirms the purchase, the charge will be made to the iTunes account.  
- Cancellation: To cancel the subscription, please manually turn off auto-renewal at least 24 hours before the current subscription period ends in 【Settings】 → 【Apple ID, iCloud, iTunes & App Store】 → 【Subscriptions】.  
- Renewal: The iTunes account will be charged within 24 hours before expiration. After a successful charge, the subscription period will be extended according to the chosen plan.  
- Privacy Policy: https://laysky.com/en/compass-privacypolicy.html  
- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/  
- User Agreement: https://laysky.com/en/subscription-compass.html  
- Paid Membership Service Agreement: https://laysky.com/en/subscription-compass.html  

For client usage issues, please contact twtams@163.com for support.

## Rankings

- #702,932 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6752685064)