CorrectAltitude vs Compass Altimeter

Correct Altitude establishes your position using data from at least twelve GPS satellites. This app shows the altitude at your current location, and enables you to take altitude-and-date-stamped photographs. Hikers usually turn off their iPhones on mountain trails because of the poor signal. When turned on, the iPhone GPS will try to determine the current location with data from three GPS satellites; however, these co-ordinates are still inaccurate. CorrectAltitude triangulates position with a large number of GPS satellites in a 5-minute period enabling an accurate determination of altitude. The app automatically continues triangulating position by polling GPS satellites, and informs you when it has established a location accurate to within the tolerated range of error. The default for this range is 5 meters (approximately 16 feet). As an add-on function, it can display where you are (if the place has a name), and this can be useful for contacting rescue services in emergencies. CorrectAltitude has been tested on hiking trails in the Himalayas! Here is an example of an altitude-and-date-stamped photograph. The photograph is taken at the maximum resolution of your phone's camera and stored. GPS information is discarded. If the Notify mode remains set to "ON", you will continue to get updates on altitude every five minutes. To conserve the battery and stop repeated updates, you may prefer to set Notify mode to "OFF" after you have determined your altitude.

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 ------------------------------------------------------- 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.