Best Longitude 103 Apps

203+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated May 2026

Every iPhone needs a few good longitude 103 apps. We benchmark 203+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Longitude 103

HydroData#2

HydroData by Longitude 103

HydroData Field Collection
Strong Contender
🔧 Utilities
2.6(5 ratings)
Free
HydroData screenshot 1
HydroData screenshot 2
HydroData screenshot 3

This app enables field data collection with map integration to pinpoint features and track your location. It supports gathering field reports, well water levels, and dam inspection data, syncing it all to the cloud when convenient.

Find My Friends#3

Find My Friends by Apple Inc.

Worth Considering
🌐 Social Networking
3.4(427 ratings)
Free
Find My Friends screenshot 1
Find My Friends screenshot 2
Find My Friends screenshot 3
Find My Friends screenshot 4
Find My Friends screenshot 5

Easily locate friends and family on your iOS devices. Share your location temporarily or permanently, set up location-based alerts, and control your privacy with simple switches. Stay connected and informed about your loved ones' whereabouts.

More Longitude 103 apps to explore

4
Coordinates – GPS Converter
Coordinates – GPS Converter
Coordinates – GPS Converter
Lat/Lon to UTM, MGRS, and more
Free

This app is a versatile tool for converting and managing geographic coordinates. It supports numerous global formats and datums, allowing users to view, input, and save locations with rich details. Ideal for professionals and outdoor enthusiasts needing precise location data.

Coordinate conversion (UTM, MGRS, Georef, etc.)Batch conversion of multiple coordinatesAdd notes, photos, and media to saved locations
🗺️ Navigation
(6.4K)
free with in-app purchases
5
Aqua Map Boating
Aqua Map Boating
Aqua Map Boating
Marine navigation and fishing
Free

This app provides official, weekly updated nautical charts for marine navigation. It allows for offline map downloads, GPS track recording, and integration with onboard instruments. Enhance your boating safety and experience with advanced features like weather forecasts and AIS collision detection.

Official NOAA nautical chartsOffline map downloadsGPS track recording
🗺️ Navigation
(13K)
free with in-app purchases
6
Timemark: Photo Proof for Work
Timemark: Photo Proof for Work
Timemark: Photo Proof for Work
GPS, Date & Time Stamp Photos
Free

This app provides tamper-proof photo documentation for field teams, stamping each image with verified time, GPS location, and custom watermarks. It facilitates team photo collection, organization, and professional report generation, streamlining workflows and reducing disputes.

Tamper-proof photo evidenceNetwork-verified timestampsPrecise GPS coordinates
📷 Photo & Video
(13K)
free with in-app purchases
7
Navionics® Boating
Navionics® Boating
Navionics® Boating
Nautical and fishing charts
Free

Access detailed nautical charts and advanced boating features offline on your mobile device. Plan trips with dock-to-dock guidance, check weather and tides, and connect with a community of boaters. Ideal for cruising, fishing, sailing, and diving.

Offline nautical chartsHD bathymetry mapsDock-to-dock route planning
🗺️ Navigation
(2.3K)
free with in-app purchases
8
Compass & Altimeter
Compass & Altimeter
Compass & Altimeter
Altimeter, Pressure, Weather
Free

This app provides precise geographical orientation with a compass and displays vital data like altitude, weather, and location. It helps users navigate, record locations, and measure real-time GPS speed, making it a useful travel companion.

Accurate compass functionalityDisplay altitude, longitude, and latitudeReal-time weather information
🗺️ Navigation
(2.2K)
free with in-app purchases
9
Fishing Points: Map & Forecast
Fishing Points: Map & Forecast
Fishing Points: Map & Forecast
Find Best Tides Times to Fish
Free

This app helps anglers find the best times and locations to fish by providing detailed forecasts for tides, moon phases, weather, and marine conditions. It offers interactive maps to discover and save fishing spots, track routes, and access offline nautical charts, along with a catch logbook and fishing regulations.

Fishing forecasts (tides, moon, weather, solunar)Detailed fishing maps (satellite, nautical, lake depth)Save and discover fishing spots and routes
⚽ Sports
(30K)
free with in-app purchases
10
Acres: Land Data & Parcel Maps
Acres: Land Data & Parcel Maps
Acres: Land Data & Parcel Maps
Property lines & owner info
Free

Easily discover property lines, owner information, and land for sale. Features include offline maps, 3D terrain visualization, route tracking, and the ability to save and share custom maps. Access detailed land data like soil composition, elevation, and historical imagery.

Property line visualizationOwner information lookupLand for sale listings
💼 Business
(1.9K)
free with in-app purchases
11
Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
Marine GPS and Nautical Charts
Free

This app provides comprehensive marine navigation, integrating charts, weather, tides, and GPS tracking. It simplifies route planning and offers real-time safety data to ensure confident and enjoyable time on the water for various boating activities.

Clutter-free nautical chartsSmart route planning with weather and tide integrationReal-time GPS tracking
🗺️ Navigation
(7.3K)
free with in-app purchases
12
GPS Tracks
GPS Tracks
GPS Tracks
GPS Tracker and Offline Maps
Free

This app allows users to track outdoor activities like hiking, biking, and running. It enables navigation to waypoints, storage of favorite destinations, and offers advanced features for route planning and data export with a subscription.

Track hiking, biking, running, and walking routesNavigate to saved waypointsStore and manage favorite destinations
🗺️ Navigation
(17K)
free with in-app purchases
13
Wavve Boating: GPS, Map, Chart
Wavve Boating: GPS, Map, Chart
Wavve Boating: GPS, Map, Chart
Navigation, Charts, Tides, Map
Free

Navigate waterways with detailed nautical charts, tide predictions, and weather forecasts. Connect with a community of boaters to share points of interest and track friends on the water. Enjoy simplified GPS navigation tailored to your boat's draft.

Simple GPS navigationCustomizable nautical chartsCommunity points of interest
🗺️ Navigation
(5.4K)
free with in-app purchases
14
iNavX: Marine Navigation
iNavX: Marine Navigation
iNavX: Marine Navigation
Sailing & Boating Chartplotter
Free

This app provides comprehensive marine navigation tools, including worldwide chart coverage, weather forecasts, and AIS integration. It allows users to plan routes, track their position, and connect with onboard instruments for a complete boating experience.

Worldwide marine chart accessReal-time GPS plottingWaypoint and route management
🗺️ Navigation
(20K)
free with in-app purchases
15
LandGlide: Land & Field Maps
LandGlide: Land & Field Maps
LandGlide: Land & Field Maps
GPS Maps & Real Estate Data
Free

Access comprehensive property data, including parcel information, property lines, and satellite maps. Pinpoint your location using GPS to view details, search by owner or address, and save favorite properties with notes and pictures. Ideal for real estate professionals and property owners.

Comprehensive parcel dataProperty line mapsSatellite and aerial views
🗺️ Navigation
(57K)
free with in-app purchases
16
Regrid Property App
Regrid Property App
Regrid Property App
Land Parcels & Property Owners
Free

Instantly access nationwide land and property data, including lot lines, owner information, and property values. Explore millions of parcels with a free starter account, or upgrade for advanced features like automated updates and detailed mapping tools.

Lot lines and boundariesAPN/Parcel ID and addressProperty owner and mailing address
💼 Business
(8.5K)
freemium
17
i-Boating: Marine Charts & Gps
i-Boating: Marine Charts & Gps
i-Boating: Marine Charts & Gps
Lake Maps & Fishing Spots
Free

Navigate waterways with detailed marine charts and GPS. Features include route planning, voice-guided navigation, tide and current predictions, and track recording. Offers extensive map coverage for various regions and inland rivers.

Detailed vector marine chartsRoute planning and editingVoice-guided navigation
🗺️ Navigation
(14K)
free with in-app purchases
18
My GPS Coordinates °
My GPS Coordinates °
My GPS Coordinates °
Find your current location.
Free

Easily find your precise GPS coordinates, altitude, and satellite count. Save locations with photos, customize data overlays, and share your whereabouts instantly. Includes a compass, map view of saved spots, and an SOS feature for emergencies.

High accuracy GPS coordinatesMultiple coordinate formatsGeotagged photo memories
🗺️ Navigation
(2.1K)
free with in-app purchases
19
what3words: Navigation & Maps
what3words: Navigation & Maps
what3words: Navigation & Maps
Navigate to any exact location
Free

This app assigns a unique three-word address to every 10-foot square on Earth. Easily find, share, and navigate to precise locations worldwide using simple word combinations. It's ideal for pinpointing exact meeting spots, deliveries, or even emergency services.

Navigate using three-word addressesShare precise locationsFind current address offline
🗺️ Navigation
(44K)
free with in-app purchases
20
inRoute - Intelligent Routing
inRoute - Intelligent Routing
inRoute - Intelligent Routing
Route Planner & Road Trip GPS
Free

Plan optimal routes with detailed road conditions like weather, elevation, and curves. Navigate turn-by-turn with voice guidance and receive automatic severe weather alerts. Import, export, and share routes easily.

Voice-guided navigation with severe weather alertsRoute optimization by time or manual reorderingImport routes from XLSX, GPX, and KML
🗺️ Navigation
(10K)
freemium