--- title: "Compass: GPS Field & Altimeter - Reviews, Revenue and Downloads in Vietnam | Apple App Store" description: "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 monit" --- # Compass: GPS Field & Altimeter — Vietnam > Altimeter · Speed · Navigation ![Compass App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/b3/56/23/b3562342-5164-4731-f687-7e4e01b080c6/AppIcon-0-0-1x_U007epad-0-1-0-85-220.png/434x0w.png) **Developer:** [Tung To Dinh](https://apptail.io/developer/tung-to-dinh-DFIb) **Category:** Utilities **Rating:** 5.0/5 (1 ratings) **Price:** Free **Bundle ID:** com.todinhtung.aicompass **Store:** Apple App Store **Country:** Vietnam **Version:** 1.0.1 (released 2026-07-07) **Original Release:** 2026-06-23 **Languages:** Arabic, English, French, Spanish, Vietnamese **App Store Link:** [Download on Apple App Store](https://apps.apple.com/vn/app/app/id6777302326) **AppTail Page:** [https://apptail.io/app/compass-gps-field-altimeter-kmFA/vietnam](https://apptail.io/app/compass-gps-field-altimeter-kmFA/vietnam) ## Compass Description 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: Terms of Use: ## Compass Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8c/26/09/8c2609fb-01e5-c954-1078-164aab58766a/01-find-your-bearing__U00281_U0029.png/1242x2688.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3c/12/53/3c125385-a78e-bbc8-1665-1ab673749e5e/02-navigate-with-precision__U00281_U0029.png/1242x2688.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/2c/57/f5/2c57f5aa-865b-f2e6-cffd-7f3c85a87182/03-altitude-conditions__U00281_U0029.png/1242x2688.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/12/b3/19/12b31935-10d6-f9d6-c064-f3b1011e5546/06-gps-speedometer__U00281_U0029.png/1242x2688.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/8a/fd/c0/8afdc04e-b226-7c8a-7daf-88cddb75b4e7/07-track-every-mile__U00281_U0029.png/1242x2688.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/87/4e/12/874e1203-3a59-41d3-9733-c5589ddc7ffb/04-measure-your-altitude__U00281_U0029.png/1242x2688.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8e/d3/a7/8ed3a72b-1bed-69a9-8953-742f267ea67f/08-record-your-journey__U00281_U0029.png/1242x2688.png) ## Compass Rating Breakdown in Vietnam - 5 stars: 1 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Compass Discovered Keywords - compass - altimeter - gps field ## Compass Available In - [Vietnam](https://apptail.io/app/compass-gps-field-altimeter-kmFA/vietnam) - [France](https://apptail.io/app/compass-gps-field-altimeter-kmFA/france) - [Australia](https://apptail.io/app/compass-gps-field-altimeter-kmFA/australia) - [Azerbaijan](https://apptail.io/app/compass-gps-field-altimeter-kmFA/azerbaijan) - [Barbados](https://apptail.io/app/compass-gps-field-altimeter-kmFA/barbados) - [Belgium](https://apptail.io/app/compass-gps-field-altimeter-kmFA/belgium) - [Bulgaria](https://apptail.io/app/compass-gps-field-altimeter-kmFA/bulgaria) - [Bahrain](https://apptail.io/app/compass-gps-field-altimeter-kmFA/bahrain) - [Bermuda](https://apptail.io/app/compass-gps-field-altimeter-kmFA/bermuda) - [Brunei](https://apptail.io/app/compass-gps-field-altimeter-kmFA/brunei) - [Brazil](https://apptail.io/app/compass-gps-field-altimeter-kmFA/brazil) - [Botswana](https://apptail.io/app/compass-gps-field-altimeter-kmFA/botswana) - [Belarus](https://apptail.io/app/compass-gps-field-altimeter-kmFA/belarus) - [Belize](https://apptail.io/app/compass-gps-field-altimeter-kmFA/belize) - [Canada](https://apptail.io/app/compass-gps-field-altimeter-kmFA/canada) - [China](https://apptail.io/app/compass-gps-field-altimeter-kmFA/china) - [Cyprus](https://apptail.io/app/compass-gps-field-altimeter-kmFA/cyprus) - [Algeria](https://apptail.io/app/compass-gps-field-altimeter-kmFA/algeria) - [Ecuador](https://apptail.io/app/compass-gps-field-altimeter-kmFA/ecuador) - [Estonia](https://apptail.io/app/compass-gps-field-altimeter-kmFA/estonia) - [United Kingdom](https://apptail.io/app/compass-gps-field-altimeter-kmFA/united-kingdom) - [Grenada](https://apptail.io/app/compass-gps-field-altimeter-kmFA/grenada) - [Guyana](https://apptail.io/app/compass-gps-field-altimeter-kmFA/guyana) - [Honduras](https://apptail.io/app/compass-gps-field-altimeter-kmFA/honduras) - [Indonesia](https://apptail.io/app/compass-gps-field-altimeter-kmFA/indonesia) - [India](https://apptail.io/app/compass-gps-field-altimeter-kmFA/india) - [Iceland](https://apptail.io/app/compass-gps-field-altimeter-kmFA/iceland) - [Jamaica](https://apptail.io/app/compass-gps-field-altimeter-kmFA/jamaica) - [Jordan](https://apptail.io/app/compass-gps-field-altimeter-kmFA/jordan) - [Kenya](https://apptail.io/app/compass-gps-field-altimeter-kmFA/kenya) - [Sri Lanka](https://apptail.io/app/compass-gps-field-altimeter-kmFA/sri-lanka) - [Lithuania](https://apptail.io/app/compass-gps-field-altimeter-kmFA/lithuania) - [Latvia](https://apptail.io/app/compass-gps-field-altimeter-kmFA/latvia) - [Madagascar](https://apptail.io/app/compass-gps-field-altimeter-kmFA/madagascar) - [North Macedonia](https://apptail.io/app/compass-gps-field-altimeter-kmFA/north-macedonia) - [Macao SAR China](https://apptail.io/app/compass-gps-field-altimeter-kmFA/macau) - [Malta](https://apptail.io/app/compass-gps-field-altimeter-kmFA/malta) - [Mauritius](https://apptail.io/app/compass-gps-field-altimeter-kmFA/mauritius) - [Namibia](https://apptail.io/app/compass-gps-field-altimeter-kmFA/namibia) - [Norway](https://apptail.io/app/compass-gps-field-altimeter-kmFA/norway) - [Nepal](https://apptail.io/app/compass-gps-field-altimeter-kmFA/nepal) - [Oman](https://apptail.io/app/compass-gps-field-altimeter-kmFA/oman) - [Panama](https://apptail.io/app/compass-gps-field-altimeter-kmFA/panama) - [Paraguay](https://apptail.io/app/compass-gps-field-altimeter-kmFA/paraguay) - [Romania](https://apptail.io/app/compass-gps-field-altimeter-kmFA/romania) - [Singapore](https://apptail.io/app/compass-gps-field-altimeter-kmFA/singapore) - [Slovenia](https://apptail.io/app/compass-gps-field-altimeter-kmFA/slovenia) - [Slovakia](https://apptail.io/app/compass-gps-field-altimeter-kmFA/slovakia) - [Senegal](https://apptail.io/app/compass-gps-field-altimeter-kmFA/senegal) - [Suriname](https://apptail.io/app/compass-gps-field-altimeter-kmFA/suriname) - [Thailand](https://apptail.io/app/compass-gps-field-altimeter-kmFA/thailand) - [Tunisia](https://apptail.io/app/compass-gps-field-altimeter-kmFA/tunisia) - [Türkiye](https://apptail.io/app/compass-gps-field-altimeter-kmFA/turkey) - [Uganda](https://apptail.io/app/compass-gps-field-altimeter-kmFA/uganda) - [United States](https://apptail.io/app/compass-gps-field-altimeter-kmFA/united-states) - [Uruguay](https://apptail.io/app/compass-gps-field-altimeter-kmFA/uruguay) - [Uzbekistan](https://apptail.io/app/compass-gps-field-altimeter-kmFA/uzbekistan) - [Venezuela](https://apptail.io/app/compass-gps-field-altimeter-kmFA/venezuela) - [Armenia](https://apptail.io/app/compass-gps-field-altimeter-kmFA/armenia) - [South Africa](https://apptail.io/app/compass-gps-field-altimeter-kmFA/south-africa) - [Angola](https://apptail.io/app/compass-gps-field-altimeter-kmFA/angola) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*