# Compass: GPS Field & Altimeter — Altimeter · Speed · Navigation

> Altimeter · Speed · Navigation (iPhone/iPad app by Tung To Dinh.)

- Source: https://appshunter.io/ios/app/compass-gps-field-and-altimeter/id6777302326 (this page in markdown: same URL + `.md`)
- Developer: [Tung To Dinh](https://appshunter.io/developer/1637839190)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.6 · 65 MB
- Languages: American English, Arabic, French (France), European Spanish, Vietnamese
- Released: 2026-06-23
- Data updated: 2026-08-13
- User reviews in markdown: https://appshunter.io/ios/app/compass-gps-field-and-altimeter/id6777302326/reviews.md

## What is Compass?

Find your direction. Know your location. Track every journey.

Compass is a precision field instrument for iPhone — combining a real-time compass, GPS positioning, altimeter, barometric pressure monitor, GPS speedometer, and activity recorder in one premium dark-mode app.

REAL-TIME COMPASS

A smooth compass dial that rotates instantly with your iPhone. Shows all 16 cardinal and intercardinal directions with precise 0°–360° degree readings.

• Accuracy within ±5° of true heading
• Smooth needle animation — no lag, no jitter
• Magnetic interference detection with visual warning
• Automatic calibration guide (figure-8 motion)
• VoiceOver support — direction and degrees read aloud

GPS COORDINATES & LOCATION

See exactly where you are. Latitude and longitude in DMS format with a live GPS accuracy reading.

• Coordinates: 105°49′26″ E · 21°1′10″ N
• Live GPS accuracy indicator (e.g., ±6 m)
• Current location name (city/district) with live temperature
• Weather & location refreshed every 10 minutes via WeatherKit
• Cached data shown when offline, with last-updated timestamp

ALTITUDE, PRESSURE & WIND

Three environmental readings always on the compass screen — no tab switching needed.

• Altitude: barometric sensor (GPS fallback if sensor unavailable)
• Atmospheric pressure: displayed in kPa (kilopascals)
• Wind direction: live reading from weather service (e.g., NNW Wind)

FULL SENSOR DATA DASHBOARD

Every sensor reading organized in one scrollable screen. The altitude card stays pinned to the top across 6 sensor groups:

• GPS Coordinates — latitude, longitude, altitude, accuracy radius
• Air Data — temperature, humidity, dew point, wind direction & speed
• Magnetic Field — compass bearing, field strength in μT (microteslas)
• Pressure — barometric pressure, pressure-derived altitude
• Boiling Point — water boiling temperature at current altitude & pressure
• Weather — live conditions, UV index, visibility, from WeatherKit
• Daily Altitude Chart — hourly bar chart with daily max/min elevation markers

ACTIVITY TRACKER & ROUTE RECORDER

Record hikes, runs, bike rides, and walks on a live map. Tracking continues in the background even when your screen is locked.

Activity types: Walking · Running · Mountain Hiking · Cycling

Live stats: elapsed time · total GPS distance · accurate distance (high-confidence GPS) · average speed · max speed · temperature

Map styles: Standard · Dark mode · Satellite — switch anytime during recording.

GPS PHOTO — LOCATION-STAMPED IMAGES

Take or select a photo and Compass automatically attaches your GPS coordinates and altitude to it — a permanent, precise location record. Perfect for field workers, surveyors, hikers, and photographers.

GPS SPEEDOMETER

Precision analog speedometer (0–240 km/h) powered entirely by GPS. Opens and starts measuring instantly — no buttons, no setup.

Tracks: current speed · max speed · average speed · total distance · accurate distance · altitude · heading

COMPASS PRO — UNLOCK ALL FEATURES

Free version: full compass, GPS, speedometer & activity tracker.
Pro version: unlocks all sensor data groups and future Pro features.

Auto-renews until cancelled. Cancel anytime in App Store settings. Prices vary by region.

Core compass & speedometer work offline. Location access required for GPS. Weather requires internet.

Privacy Policy: https://smart.southpolemob.com/policy.html
Terms of Use: https://smart.southpolemob.com/terms.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Compass Premium Weekly | $9.99 | per 7 days |



## Version history (last 2 releases)

### 1.0.1 — 2026-07-07

We’ve optimized GPS accuracy and fixed minor bugs to ensure a smoother, more reliable navigation experience.

### 1.0.0 — 2026-06-23

No release notes.

## More apps by Tung To Dinh

- [Screen Mirroring: SmartTV Cast](https://appshunter.io/ios/app/screen-mirroring-smarttv-cast/id1637839188)
- [OneSearch: DeepSearch Finder](https://appshunter.io/ios/app/onesearch-deepsearch-finder/id1669513811)
- [Easy Scan - PDF Scanner](https://appshunter.io/ios/app/easy-scan-pdf-scanner/id6471461176)
- [Heartory: Pulse & BP Monitor](https://appshunter.io/ios/app/heartory-pulse-and-bp-monitor/id6499420737)
- [Translate One: AI Translator](https://appshunter.io/ios/app/translate-one-ai-translator/id6736970537)
- [Find Air: Nearby Device Finder](https://appshunter.io/ios/app/find-air-nearby-device-finder/id6777302009)

All apps by Tung To Dinh: https://appshunter.io/developer/1637839190

## Related topics

[crowd compass companion app](https://appshunter.io/ios/topics/crowd-compass-companion-app) · [altimeter pro with compass](https://appshunter.io/ios/topics/altimeter-pro-with-compass)

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*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 2026-08-13.*