# Realtime Altimeter - Compass — Altitude, tracks & weather > Offline GPS and barometer app for accurate altitude, weather, and tracking. (iPhone/iPad app by haoqiang shan.) - Source: https://appshunter.io/ios/app/realtime-altimeter-compass/id6762048279 (this page in markdown: same URL + `.md`) - Developer: [haoqiang shan](https://appshunter.io/developer/1440000825) - Category: Travel, Navigation - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 16.0 · 2 MB - Languages: American English, Chinese (Simplified, China) - Released: 2026-04-21 - Data updated: 2026-08-11 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/realtime-altimeter-compass/id6762048279/reviews.md ## What is Realtime Altimeter? 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. ## Key features - Live altitude, pressure, and coordinate readings - Offline weather prediction - Track recording with GPX export - True-north compass and spirit level - Altitude check-in album with watermarks - Home and Lock Screen widgets ## Frequently asked questions about Realtime Altimeter ### Does Realtime Altimeter have ads? No, Realtime Altimeter is completely ad-free. The app explicitly states it has zero ads, ensuring an uninterrupted user experience for all its features. ### What devices is Realtime Altimeter compatible with? Realtime Altimeter is designed for iPhone and Apple Watch. It also supports Home Screen and Lock Screen widgets, and Dynamic Island Live Activity on compatible iOS versions. ### How often is Realtime Altimeter updated? The app was last updated on August 10, 2026, with version 3.0.4. This indicates a recent update, suggesting ongoing development and support. ### Can I use Realtime Altimeter offline? Yes, Realtime Altimeter is designed to work entirely offline. It does not require an internet connection for its core features, including altitude readings, pressure weather trends, and track recording. ### What is the age rating for Realtime Altimeter? Realtime Altimeter has an age rating of 4+. This indicates it is suitable for young children and does not contain content typically deemed inappropriate for this age group. ### How does Realtime Altimeter track my hikes? You can start track recording with a single tap for hikes, climbs, or rides. It records distance, elevation gain and loss, and average speed, continuing even when the screen is locked. ### What kind of weather information does Realtime Altimeter provide? Realtime Altimeter uses barometric changes to predict weather trends, such as storm, rain, stable, or fair conditions. This feature works offline and helps anticipate upcoming weather changes. ### Does Realtime Altimeter require an account or subscription? No, Realtime Altimeter does not require an account or subscription. All data is stored locally on your device, and the app is completely free with no in-app purchases. ## Version history (last 4 releases) ### 3.0.4 — 2026-08-10 Fixed an issue where some options could not be selected with VoiceOver. ### 3.0.3 — 2026-05-04 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 ### 3.0.2 — 2026-04-25 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 ### 3.0.1 — 2026-04-21 No release notes. ## More apps by haoqiang shan - [Picsion - Screenshot Stitcher](https://appshunter.io/ios/app/picsion-screenshot-stitcher/id6747472077) All apps by haoqiang shan: https://appshunter.io/developer/1440000825 ## Related topics [altimeter elevation watch](https://appshunter.io/ios/topics/altimeter-elevation-watch) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*