Best Bortle Map Apps

144+ iOS apps curated and reviewed

4.3 avg rating
16 free apps
Updated June 2026

Looking for free bortle map apps? 16 of our 144+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Bortle Map

Light Pollution Map - Dark Sky#1

Light Pollution Map - Dark Sky by Dunbar Technology, LLC

Astronomy tools & more
Editor's Choice
☀️ Weather
4.7😞(81 ratings)
FreeIn-App Purchases
Light Pollution Map - Dark Sky screenshot 1
Light Pollution Map - Dark Sky screenshot 2
Light Pollution Map - Dark Sky screenshot 3
Light Pollution Map - Dark Sky screenshot 4
Light Pollution Map - Dark Sky screenshot 5
Light Pollution Map - Dark Sky screenshot 6

Discover optimal locations for stargazing and astrophotography with a detailed light pollution map. Get real-time alerts for celestial events like meteor showers and auroras, track the ISS, and access daily astronomy photos. Enhance your night sky observations with comprehensive tools and information.

What We Love

  • 👍 Clear detailed satellite views
  • 🚀 Works with barely any signal
  • 📊 Useful map with latest data
  • 🌌 Helps with astrophotography

Room to Improve

  • 🐛 Crashes on opening the map
  • 🐛 Crashes after locating user's position
  • 🔍 No legend for map colors
Sky Guide#2

Sky Guide by Fifth Star Labs LLC

Star gaze constellation finder
Strong Contender
🔍 Reference
4.8😊(26K ratings)
FreeIn-App Purchases
#6in Reference
Sky Guide screenshot 1
Sky Guide screenshot 2
Sky Guide screenshot 3
Sky Guide screenshot 4
Sky Guide screenshot 5
Sky Guide screenshot 6

Identify stars, constellations, planets, and satellites in real-time by holding your device overhead. Explore celestial bodies with AR overlays, track satellites like the ISS, and travel through time to view past and future astronomical events. Perfect for both novice and experienced stargazers.

What We Love

  • 🌟 Stunning visuals and graphics
  • 📚 Wealth of information on celestial objects
  • 🧭 Accurate and responsive compass/AR features
  • 🌌 Immersive stargazing experience

Room to Improve

  • 🧭 Occasional compass/location calibration issues
  • 💰 Subscription model limits access to some features
  • 🌍 Lack of support for certain regions/locations
Avenza Maps: Offline Mapping#3

Avenza Maps: Offline Mapping by Avenza Systems Inc.

GPS, Trails, Hiking, Offroad
Worth Considering
🗺️ Navigation
4.8😊(125K ratings)
FreeIn-App Purchases
#15in Navigation
Avenza Maps: Offline Mapping screenshot 1
Avenza Maps: Offline Mapping screenshot 2
Avenza Maps: Offline Mapping screenshot 3
Avenza Maps: Offline Mapping screenshot 4
Avenza Maps: Offline Mapping screenshot 5
Avenza Maps: Offline Mapping screenshot 6

Navigate any terrain with offline GPS maps, even without cell service. Explore a vast Map Store for hiking, biking, and travel, or import your own custom maps. Record tracks, add notes, and identify your location precisely.

What We Love

  • 🚀 Easy to use
  • 🗺️ Accurate GPS tracking
  • 📥 Offline maps
  • 💾 Ability to download maps

Room to Improve

  • 🔍 Poor search functionality
  • 🗺️ Inaccurate map placement
  • 💰 Expensive maps

More Bortle Map apps to explore

4
Yandex Maps & Navigator
Yandex Maps & Navigator
Yandex Maps & Navigator
Transport, Transit, Navigation
Free

Navigate your city with detailed maps, real-time traffic, and multi-modal routing. Find businesses, get directions by car, public transport, bike, or foot, and access offline maps for over 2000 cities.

Offline maps for over 2000 citiesReal-time traffic conditionsMulti-modal routing (car, transit, bike, walk)
🗺️ Navigation
(35K)
free with in-app purchases
5
Scenic Map Western USA
Scenic Map Western USA
Scenic Map Western USA
Offline 3D topo maps
$4.99

Explore detailed 3D topographic maps of the Western USA and Hawaii offline. Access global online maps with automatic caching for use without cell service. Enjoy smooth zooming, customizable map layers, and GPS tracking to record and replay your routes.

Offline 3D topographic mapsGlobal online map accessAutomatic map caching
🗺️ Navigation
(12)
free
6
Mapster
Mapster
Mapster
by Syzygy Research & Technology Ltd.
Free

Explore the Earth with detailed offline maps featuring topographical hillshading and contour lines. Discover hiking trails, ski runs, and geographical features, even without an internet connection. Access up-to-date information from OpenStreetMap for navigation and exploration.

Detailed topographical mapsOffline map accessHillshading and contour lines
🗺️ Navigation
(15)
free with in-app purchases
7
World Map +
World Map +
World Map +
Quick Reference World Maps
Free

Access essential world maps for quick reference and navigation. Explore political, detailed, and time zone maps, with interesting facts about countries. Works online and offline, ideal for students, travelers, and curious minds.

Quick access to essential world mapsPolitical, Detailed, and Time Zones MapsEasy map switching
🔍 Reference
(7.1K)
ad-supported
8
700 City Maps
700 City Maps
700 City Maps
by Dubbele.com
Free

Navigate any city with over 700 offline maps. Find streets, points of interest, and mark locations without an internet connection. Perfect for travelers avoiding data charges and slow online maps.

Offline map accessOver 700 city mapsStreet and location finder
✈️ Travel
(5)
free with in-app purchases
9
Map Canvas: Draw on Maps
Map Canvas: Draw on Maps
Map Canvas: Draw on Maps
Sketch & annotate on world map
Free

This app allows users to sketch, annotate, and plan routes directly on a world map. It supports importing and exporting geographic data files and offers tools for drawing and pathfinding. Users can also share their map creations online.

Draw and annotate on world mapsPathfinding toolsImport GeoJSON and GPX files
📊 Productivity
(72)
free with in-app purchases
10
MapChart App
MapChart App
MapChart App
Create Custom Maps
Free

Create custom maps by coloring them with various tools and options. Save, load, and share your creations. Offers a wide selection of map types, from world and historical maps to fantasy and video game maps.

Wide variety of map typesIntuitive map coloringCustomizable map elements
🎨 Graphics & Design
(4.6K)
free with in-app purchases
11
Awesomap
Awesomap
Awesomap
Sharper maps, more detail
Free

This app enhances your existing iOS maps by displaying four times more detail, including street names and points of interest, with sharper satellite imagery. It allows you to adjust the zoom scale for comfortable viewing and is optimized for Retina displays.

Displays four times more map detailSharper satellite imageryMore street names and points of interest
🗺️ Navigation
(361)
paid
12
UK Map
UK Map
UK Map
Ordnance Survey® map data
$9.99

Explore Great Britain with detailed offline maps using Ordnance Survey data. Download free 1:25,000 and 1:10,000 scale maps, plan routes, mark waypoints, and view terrain in 3D. Access place names, street names, and postcodes without an internet connection.

Unlimited free map downloadsOffline map accessRoute planning and track recording
🗺️ Navigation
(7)
free with in-app purchases
13
RouteBuddy Atlas - GPS Nav App for US and Worldwide Topo Maps
RouteBuddy Atlas - GPS Nav App for US and Worldwide Topo Maps
RouteBuddy Atlas - GPS Nav App for US and Worldwide Topo Maps
by RouteBuddy Ltd.
Free

This GPS navigation app offers detailed offline topographic maps for various regions worldwide, including the US, UK, France, and Ireland. It caters to outdoor enthusiasts and professionals with features like national park and trail maps, with options for premium map purchases.

Offline topographic mapsUSGS National Park mapsThru-hiker trail maps
🗺️ Navigation
(1)
free with in-app purchases
14
HERE Map Creator
HERE Map Creator
HERE Map Creator
by HERE Europe B.V.
Free

Enhance your HERE navigation experience by updating map data directly from your mobile device. Easily add, edit, or remove locations, improve positioning, and share your contributions with a global community. Help make maps more accurate for everyone.

Update HERE map data on-the-goSearch, view, and edit map informationCollect, edit, or delete places
🔧 Utilities
(24)
free
15
Iphigénie | Offline Maps
Iphigénie | Offline Maps
Iphigénie | Offline Maps
IGN maps, hiking, outdoor
Free

Explore the outdoors with detailed offline maps and navigation tools. Access a vast library of topographic, satellite, and historical maps, along with useful overlays for hiking, cycling, and ski touring. Plan, track, and share your routes with confidence, even in remote areas.

Offline map downloadsExtensive map and overlay libraryRoute creation and editing
🗺️ Navigation
(21)
free with in-app purchases
16
MapOut
MapOut
MapOut
Beautiful hiking & cycling map
$4.99

Create, view, and record custom routes with offline global maps. Explore terrain in 3D, track your speed and distance, and access detailed topographical and tourist information.

Offline global mapsRoute drawing and planning3D Tilt View terrain exploration
🗺️ Navigation
(128)
free
17
Railmap for Open Railway Map
Railmap for Open Railway Map
Railmap for Open Railway Map
Explore global train tracks
$2.99

Discover the world through the lens of train tracks. Explore global rail networks, understand speed limits on different lines, and view detailed information about railway signals. The app caches visited locations for faster loading.

Explore global train tracksView speed limits on tracksDetailed signal information
🔍 Reference
(597)
ad-supported
18
Utah Co Maps
Utah Co Maps
Utah Co Maps
by Utah County Government
Free

Access detailed property records for Utah County with this app. Search by address, name, or parcel, and tap on the map to view ownership history, property values, and improvement details.

Search property recordsInteractive topographic mapView ownership history
💼 Business
(18)
free
19
GPS Map
GPS Map
GPS Map
by n3rds
Free

Easily search for and save your favorite places using addresses or GPS coordinates. Share locations with others or send them to various map applications. Offers map overlays from Google and OpenStreetMap.

Search locations by address or coordinatesBookmark favorite placesSend locations to other map apps
🗺️ Navigation
(36)
free
20
TCG Map-graphy
TCG Map-graphy
TCG Map-graphy
by Tokyo Cartographic CO.,LTD.
Free

Explore the world through detailed map graphics derived from OpenStreetMap data. This app focuses on visual representation, allowing you to view global cities, coastlines, rivers, and road networks at any scale without typical map functionalities like search or annotation.

View OSM data at any scaleExplore global cities, coastlines, and riversGraphical map view filters
🎬 Entertainment
(3)
free