Realtime Altimeter - Compass
Altitude, tracks & weather
Free · Designed for iPhone. Not verified for macOS.
No internet required. Works fully offline for hiking, climbing & cycling: GPS altitude, pressure, speed, coordinates, compass, sunrise/sunset, and photo watermarks
Realtime Altimeter - Your Pocket Outdoor Dashboard
Built on iPhone's GPS and barometer, delivering millisecond-accurate altitude,
coordinates, pressure, and speed. No account, no subscription, no internet
required. Everything stays on your device.
========================
KEY FEATURES
========================
[LIVE READINGS]
· Altitude (meters / feet)
· Pressure (mmHg / kPa / mBar / atm)
· Coordinates (DMS / decimal / reverse-geocoded / sunrise-sunset)
· Speed and heading
· True-north compass
[HISTORY CHARTS]
· 1h / 6h / 24h / 7-day ranges
· Altitude and pressure dual charts
· Min / Max / Current at a glance
[TRACK RECORDING]
· One-tap start for hikes, climbs, or rides
· Distance, elevation gain, loss, average speed
· Continues recording when screen is locked
· Export GPX, compatible with every outdoor app
[PRESSURE WEATHER TREND]
· Predicts storm / rain / stable / fair weather from barometric changes
· Works entirely offline
[ALTITUDE CHECK-IN ALBUM]
· Auto-logs position when you save a watermarked photo
· Map view of all your spots
· 6 outdoor-themed watermarks: Peak Line, Summit Badge, Trail Sign, GPS Watch, Expedition Stamp, Topo Map
[OUTDOOR TOOLKIT]
· Spirit level and slope meter
· Sunrise / sunset and moon phase
· Compass bearing lock
· Voice altitude announcements
[ACHIEVEMENTS]
· Summit badges, distance goals, storm chaser, and more
· Unlocked locally, no account needed
[ECOSYSTEM]
· Home Screen and Lock Screen widgets
· Dynamic Island Live Activity (iOS 16.1+)
· Standalone Apple Watch app
========================
WHY REALTIME ALTIMETER
========================
· 100% local data, nothing uploaded, no account
· Zero ads, zero subscriptions, zero in-app purchases
· Battery-optimized for all-day tracking
· Full English and Simplified Chinese support
· iPhone, Apple Watch, widgets, all included
Whether you are hiking, climbing, cycling, skiing, flying, or just curious
how high up you are right now, Realtime Altimeter is the simplest and most
reliable companion.
Download and start your first track today.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
This update focuses on offline outdoor use:
· No internet required, works fully offline
· Real-time GPS altitude, pressure, speed, coordinates, and compass
· Sunrise/sunset lookup and reverse geocoding
· Altitude photo watermarks for every outdoor adventure
· Stability and performance improvements
The developer, haoqiang shan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- haoqiang shan
- Size
- 2 MB
- Category
- Travel
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 9.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Altimeter